637202 ÷ 51 
Our goal is to divide 637202 by 51.

Going ahead to step 1:
If we divide 6 by 51, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 51

On to step 2:
When dividing 63 by 51, we get 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 51 from 63 and we're left with 12.
Take the next digit (7) from the dividend and append it to 12, then repeat: 127 / 51

Advancing to step 3:
When dividing 127 by 51, we get 2 with a remainder of 25.
Write down 2 as next digit of the result. 
Result so far: 12.0
The remainder is 25 after subtracting 102 from 127.
Include the next digit (2) from the dividend after 25, then repeat: 252 / 51

Going ahead to step 4:
The number 51 fits into 252 4 times, leaving a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 124.0
If we subtract 204 from 252, we get 48.
Take the next digit (0) from the dividend and append it to 48, then repeat: 480 / 51

Advancing to step 5:
The number 51 fits into 480 9 times, leaving a remainder of 21.
The next digit of our result is 9. 
Result so far: 1249.0
Subtracting 459 from 480 leaves us with 21.
Append the next digit (2) from the dividend to 21 and continue with: 212 / 51

Step 6:
51 can be fit into 212 4 times, resulting in a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 12494.0
Subtracting 204 from 212 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
When dividing 80 by 51, we get 1 with a remainder of 29.
The next digit of our result is 1. 
Result so far: 12494.1
The remainder is 29 after subtracting 51 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 8:
If we divide 290 by 51, we get 5 and a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 12494.15
If we take 255 away from 290, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 9:
If we divide 350 by 51, we get 6 and a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 12494.156
If we take 306 away from 350, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 10:
If we divide 440 by 51, we get 8 and a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 12494.1568
The remainder is 32 after subtracting 408 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 11:
51 can be fit into 320 6 times, resulting in a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 12494.15686
Deduct 306 from 320 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 12:
51 goes into 140 2 times with a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 12494.156862
Subtracting 102 from 140 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 13:
The number 51 fits into 380 7 times, leaving a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 12494.1568627
Deduct 357 from 380 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 14:
If we divide 230 by 51, we get 4 and a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 12494.15686274
If we subtract 204 from 230, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final result is 12494.15686274 with a remainder of 2.6e-08.