79160514 divided by 640 
Let's see how many times 640 fits into 79160514.

Advancing to step 1:
7 divided by 640 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 640

Going ahead to step 2:
If we divide 79 by 640, we get 0 and a remainder of 79.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 79, we get 79.
Bring next digit (1) of the dividend behind the 79 and repeat the process: 791 / 640

On to step 3:
If we divide 791 by 640, we get 1 and a remainder of 151.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 640 from 791, we get 151.
Include the next digit (6) from the dividend after 151, then repeat: 1516 / 640

Let's proceed to step 4:
If we divide 1516 by 640, we get 2 and a remainder of 236.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 1280 from 1516 and we're left with 236.
Bring next digit (0) of the dividend behind the 236 and repeat the process: 2360 / 640

Step 5:
When dividing 2360 by 640, we get 3 with a remainder of 440.
The next digit of our result is 3. 
Result so far: 123.0
The remainder is 440 after subtracting 1920 from 2360.
Grab the next digit (5) from the dividend, add it to 440, then carry on: 4405 / 640

Moving on to step 6:
640 goes into 4405 6 times with a remainder of 565.
The number 6 becomes the next digit in our result. 
Result so far: 1236.0
Subtract 3840 from 4405 to get 565.
Take the next digit (1) from the dividend and append it to 565, then repeat: 5651 / 640

Moving on to step 7:
If we divide 5651 by 640, we get 8 and a remainder of 531.
Put 8 as the next digit of the answer. 
Result so far: 12368.0
The remainder is 531 after subtracting 5120 from 5651.
Include the next digit (4) from the dividend after 531, then repeat: 5314 / 640

Let's proceed to step 8:
If we divide 5314 by 640, we get 8 and a remainder of 194.
Use 8 as the next digit of our solution. 
Result so far: 123688.0
If we take 5120 away from 5314, we end up with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Moving on to step 9:
When dividing 1940 by 640, we get 3 with a remainder of 20.
The next digit of our result is 3. 
Result so far: 123688.3
The remainder is 20 after subtracting 1920 from 1940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
When dividing 200 by 640, we get 0 with a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 123688.3
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 11:
When dividing 2000 by 640, we get 3 with a remainder of 80.
Put 3 as the next digit of the answer. 
Result so far: 123688.303
If we take 1920 away from 2000, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 12:
The number 640 fits into 800 1 times, leaving a remainder of 160.
Use 1 as the next digit of our solution. 
Result so far: 123688.3031
If we subtract 640 from 800, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 13:
640 goes into 1600 2 times with a remainder of 320.
Put 2 as the next digit of the answer. 
Result so far: 123688.30312
If we subtract 1280 from 1600, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 14:
If we divide 3200 by 640, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 123688.303125
If we take 3200 away from 3200, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 15:
The number 640 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 123688.303125
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 16:
When dividing 0 by 640, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 123688.303125
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 123688.303125, with a leftover of 0.0.