We look at the division of 88976311 by 639 
We're looking to find how many times 639 goes into 88976311.

Moving on to step 1:
When dividing 8 by 639, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 639

Advancing to step 2:
If we divide 88 by 639, we get 0 and a remainder of 88.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 88 leaves us with 88.
Include the next digit (9) from the dividend after 88, then repeat: 889 / 639

Advancing to step 3:
If we divide 889 by 639, we get 1 and a remainder of 250.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 250 after subtracting 639 from 889.
Fetch the next digit (7) from the dividend, attach it to 250 and continue: 2507 / 639

On to step 4:
When dividing 2507 by 639, we get 3 with a remainder of 590.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 1917 away from 2507, we end up with 590.
Fetch the next digit (6) from the dividend, attach it to 590 and continue: 5906 / 639

Advancing to step 5:
If we divide 5906 by 639, we get 9 and a remainder of 155.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
The remainder is 155 after subtracting 5751 from 5906.
Grab the next digit (3) from the dividend, add it to 155, then carry on: 1553 / 639

Let's proceed to step 6:
When dividing 1553 by 639, we get 2 with a remainder of 275.
The number 2 becomes the next digit in our result. 
Result so far: 1392.0
Deduct 1278 from 1553 and we're left with 275.
Fetch the next digit (1) from the dividend, attach it to 275 and continue: 2751 / 639

Going ahead to step 7:
639 goes into 2751 4 times with a remainder of 195.
Record the quotient 4 as the next digit in the result. 
Result so far: 13924.0
The remainder is 195 after subtracting 2556 from 2751.
Take the next digit (1) from the dividend and append it to 195, then repeat: 1951 / 639

Moving on to step 8:
When dividing 1951 by 639, we get 3 with a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 139243.0
If we take 1917 away from 1951, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 9:
If we divide 340 by 639, we get 0 and a remainder of 340.
Use 0 as the next digit of our solution. 
Result so far: 139243.0
The remainder is 340 after subtracting 0 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 10:
When dividing 3400 by 639, we get 5 with a remainder of 205.
Use 5 as the next digit of our solution. 
Result so far: 139243.05
Subtract 3195 from 3400 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

On to step 11:
When dividing 2050 by 639, we get 3 with a remainder of 133.
Use 3 as the next digit of our solution. 
Result so far: 139243.053
If we take 1917 away from 2050, we end up with 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

On to step 12:
When dividing 1330 by 639, we get 2 with a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 139243.0532
Deduct 1278 from 1330 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 13:
520 divided by 639 is 0 with a remainder of 520.
The number 0 becomes the next digit in our result. 
Result so far: 139243.0532
Subtracting 0 from 520 leaves us with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 14:
5200 divided by 639 is 8 with a remainder of 88.
Put 8 as the next digit of the answer. 
Result so far: 139243.053208
If we subtract 5112 from 5200, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Let's proceed to step 15:
If we divide 880 by 639, we get 1 and a remainder of 241.
Record the quotient 1 as the next digit in the result. 
Result so far: 139243.0532081
If we take 639 away from 880, we end up with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Let's proceed to step 16:
639 can be fit into 2410 3 times, resulting in a remainder of 493.
Use 3 as the next digit of our solution. 
Result so far: 139243.05320813
The remainder is 493 after subtracting 1917 from 2410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4930, and continue the process.

The final outcome is 139243.05320813, with a leftover of 4.93e-07.