78169251 ÷ 654 
Our goal is to divide 78169251 by 654.

Going ahead to step 1:
654 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 654

Advancing to step 2:
654 can be fit into 78 0 times, resulting in a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Append the next digit (1) from the dividend to 78 and continue with: 781 / 654

Advancing to step 3:
781 divided by 654 is 1 with a remainder of 127.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 654 from 781 and we're left with 127.
Take the next digit (6) from the dividend and append it to 127, then repeat: 1276 / 654

On to step 4:
The number 654 fits into 1276 1 times, leaving a remainder of 622.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 654 from 1276 leaves us with 622.
Bring next digit (9) of the dividend behind the 622 and repeat the process: 6229 / 654

Advancing to step 5:
The number 654 fits into 6229 9 times, leaving a remainder of 343.
The number 9 becomes the next digit in our result. 
Result so far: 119.0
Subtract 5886 from 6229 to get 343.
Take the next digit (2) from the dividend and append it to 343, then repeat: 3432 / 654

Moving on to step 6:
If we divide 3432 by 654, we get 5 and a remainder of 162.
Put 5 as the next digit of the answer. 
Result so far: 1195.0
If we subtract 3270 from 3432, we get 162.
Include the next digit (5) from the dividend after 162, then repeat: 1625 / 654

Going ahead to step 7:
The number 654 fits into 1625 2 times, leaving a remainder of 317.
Use 2 as the next digit of our solution. 
Result so far: 11952.0
Subtracting 1308 from 1625 leaves us with 317.
Take the next digit (1) from the dividend and append it to 317, then repeat: 3171 / 654

On to step 8:
654 goes into 3171 4 times with a remainder of 555.
Use 4 as the next digit of our solution. 
Result so far: 119524.0
Deduct 2616 from 3171 and we're left with 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

Step 9:
654 goes into 5550 8 times with a remainder of 318.
Use 8 as the next digit of our solution. 
Result so far: 119524.8
Deduct 5232 from 5550 and we're left with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

On to step 10:
The number 654 fits into 3180 4 times, leaving a remainder of 564.
Record the quotient 4 as the next digit in the result. 
Result so far: 119524.84
If we subtract 2616 from 3180, we get 564.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Let's proceed to step 11:
When dividing 5640 by 654, we get 8 with a remainder of 408.
Record the quotient 8 as the next digit in the result. 
Result so far: 119524.848
The remainder is 408 after subtracting 5232 from 5640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Moving on to step 12:
654 goes into 4080 6 times with a remainder of 156.
Use 6 as the next digit of our solution. 
Result so far: 119524.8486
If we take 3924 away from 4080, we end up with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Moving on to step 13:
1560 divided by 654 is 2 with a remainder of 252.
Use 2 as the next digit of our solution. 
Result so far: 119524.84862
Deduct 1308 from 1560 and we're left with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Advancing to step 14:
The number 654 fits into 2520 3 times, leaving a remainder of 558.
The number 3 becomes the next digit in our result. 
Result so far: 119524.848623
Subtracting 1962 from 2520 leaves us with 558.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

Let's proceed to step 15:
654 can be fit into 5580 8 times, resulting in a remainder of 348.
The number 8 becomes the next digit in our result. 
Result so far: 119524.8486238
If we subtract 5232 from 5580, we get 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Moving on to step 16:
3480 divided by 654 is 5 with a remainder of 210.
The next digit of our result is 5. 
Result so far: 119524.84862385
Subtract 3270 from 3480 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

The quotient of the division is 119524.84862385, and the remainder is 2.1e-07.