63996974 ÷ 255 
We're looking to find how many times 255 goes into 63996974.

On to step 1:
255 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 255

Step 2:
When dividing 63 by 255, we get 0 with a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 63, we end up with 63.
Bring next digit (9) of the dividend behind the 63 and repeat the process: 639 / 255

On to step 3:
When dividing 639 by 255, we get 2 with a remainder of 129.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 129 after subtracting 510 from 639.
Take the next digit (9) from the dividend and append it to 129, then repeat: 1299 / 255

Advancing to step 4:
The number 255 fits into 1299 5 times, leaving a remainder of 24.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
If we take 1275 away from 1299, we end up with 24.
Grab the next digit (6) from the dividend, add it to 24, then carry on: 246 / 255

Moving on to step 5:
255 goes into 246 0 times with a remainder of 246.
Use 0 as the next digit of our solution. 
Result so far: 250.0
Subtracting 0 from 246 leaves us with 246.
Take the next digit (9) from the dividend and append it to 246, then repeat: 2469 / 255

Moving on to step 6:
2469 divided by 255 is 9 with a remainder of 174.
Write down 9 as next digit of the result. 
Result so far: 2509.0
Subtract 2295 from 2469 to get 174.
Fetch the next digit (7) from the dividend, attach it to 174 and continue: 1747 / 255

Moving on to step 7:
If we divide 1747 by 255, we get 6 and a remainder of 217.
The next digit of our result is 6. 
Result so far: 25096.0
Subtract 1530 from 1747 to get 217.
Fetch the next digit (4) from the dividend, attach it to 217 and continue: 2174 / 255

Moving on to step 8:
255 can be fit into 2174 8 times, resulting in a remainder of 134.
Use 8 as the next digit of our solution. 
Result so far: 250968.0
Subtract 2040 from 2174 to get 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Moving on to step 9:
The number 255 fits into 1340 5 times, leaving a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 250968.5
The remainder is 65 after subtracting 1275 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 10:
255 goes into 650 2 times with a remainder of 140.
Put 2 as the next digit of the answer. 
Result so far: 250968.52
If we subtract 510 from 650, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 11:
The number 255 fits into 1400 5 times, leaving a remainder of 125.
Use 5 as the next digit of our solution. 
Result so far: 250968.525
The remainder is 125 after subtracting 1275 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 12:
1250 divided by 255 is 4 with a remainder of 230.
Put 4 as the next digit of the answer. 
Result so far: 250968.5254
The remainder is 230 after subtracting 1020 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Going ahead to step 13:
If we divide 2300 by 255, we get 9 and a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 250968.52549
If we take 2295 away from 2300, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 14:
When dividing 50 by 255, we get 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 250968.52549
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 15:
If we divide 500 by 255, we get 1 and a remainder of 245.
The next digit of our result is 1. 
Result so far: 250968.5254901
Deduct 255 from 500 and we're left with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

On to step 16:
The number 255 fits into 2450 9 times, leaving a remainder of 155.
The number 9 becomes the next digit in our result. 
Result so far: 250968.52549019
Deduct 2295 from 2450 and we're left with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Our division results in 250968.52549019 with a remaining 1.55e-07.