We look at the division of 12571513 by 422 
We want to divide 12571513 by 422.

On to step 1:
422 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 422

Step 2:
422 can be fit into 12 0 times, resulting in a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 422

Step 3:
When dividing 125 by 422, we get 0 with a remainder of 125.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 125 and we're left with 125.
Append the next digit (7) from the dividend to 125 and continue with: 1257 / 422

Going ahead to step 4:
When dividing 1257 by 422, we get 2 with a remainder of 413.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 844 away from 1257, we end up with 413.
Grab the next digit (1) from the dividend, add it to 413, then carry on: 4131 / 422

Advancing to step 5:
4131 divided by 422 is 9 with a remainder of 333.
The next digit of our result is 9. 
Result so far: 29.0
The remainder is 333 after subtracting 3798 from 4131.
Bring next digit (5) of the dividend behind the 333 and repeat the process: 3335 / 422

Moving on to step 6:
If we divide 3335 by 422, we get 7 and a remainder of 381.
Record the quotient 7 as the next digit in the result. 
Result so far: 297.0
Subtracting 2954 from 3335 leaves us with 381.
Grab the next digit (1) from the dividend, add it to 381, then carry on: 3811 / 422

On to step 7:
If we divide 3811 by 422, we get 9 and a remainder of 13.
The next digit of our result is 9. 
Result so far: 2979.0
Subtracting 3798 from 3811 leaves us with 13.
Bring next digit (3) of the dividend behind the 13 and repeat the process: 133 / 422

Moving on to step 8:
422 goes into 133 0 times with a remainder of 133.
Use 0 as the next digit of our solution. 
Result so far: 29790.0
If we subtract 0 from 133, we get 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

Advancing to step 9:
When dividing 1330 by 422, we get 3 with a remainder of 64.
Write down 3 as next digit of the result. 
Result so far: 29790.3
Subtract 1266 from 1330 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 10:
640 divided by 422 is 1 with a remainder of 218.
The number 1 becomes the next digit in our result. 
Result so far: 29790.31
If we take 422 away from 640, we end up with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

On to step 11:
When dividing 2180 by 422, we get 5 with a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 29790.315
Subtract 2110 from 2180 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 12:
The number 422 fits into 700 1 times, leaving a remainder of 278.
Record the quotient 1 as the next digit in the result. 
Result so far: 29790.3151
Subtract 422 from 700 to get 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

Advancing to step 13:
If we divide 2780 by 422, we get 6 and a remainder of 248.
Write down 6 as next digit of the result. 
Result so far: 29790.31516
If we subtract 2532 from 2780, we get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Moving on to step 14:
The number 422 fits into 2480 5 times, leaving a remainder of 370.
Record the quotient 5 as the next digit in the result. 
Result so far: 29790.315165
If we subtract 2110 from 2480, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Step 15:
422 goes into 3700 8 times with a remainder of 324.
Use 8 as the next digit of our solution. 
Result so far: 29790.3151658
If we subtract 3376 from 3700, we get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Going ahead to step 16:
If we divide 3240 by 422, we get 7 and a remainder of 286.
Record the quotient 7 as the next digit in the result. 
Result so far: 29790.31516587
If we subtract 2954 from 3240, we get 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

The final result is 29790.31516587 with a remainder of 2.86e-07.