We look at the division of 12890352 by 615 
We want to figure out the number of times 12890352 can be divided by 615.

Advancing to step 1:
The number 615 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 615

Let's proceed to step 2:
When dividing 12 by 615, we get 0 with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Fetch the next digit (8) from the dividend, attach it to 12 and continue: 128 / 615

Going ahead to step 3:
If we divide 128 by 615, we get 0 and a remainder of 128.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 128 and we're left with 128.
Take the next digit (9) from the dividend and append it to 128, then repeat: 1289 / 615

Moving on to step 4:
1289 divided by 615 is 2 with a remainder of 59.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 59 after subtracting 1230 from 1289.
Grab the next digit (0) from the dividend, add it to 59, then carry on: 590 / 615

Going ahead to step 5:
When dividing 590 by 615, we get 0 with a remainder of 590.
Put 0 as the next digit of the answer. 
Result so far: 20.0
Subtracting 0 from 590 leaves us with 590.
Include the next digit (3) from the dividend after 590, then repeat: 5903 / 615

On to step 6:
615 goes into 5903 9 times with a remainder of 368.
The next digit of our result is 9. 
Result so far: 209.0
The remainder is 368 after subtracting 5535 from 5903.
Include the next digit (5) from the dividend after 368, then repeat: 3685 / 615

Going ahead to step 7:
615 can be fit into 3685 5 times, resulting in a remainder of 610.
Write down 5 as next digit of the result. 
Result so far: 2095.0
If we take 3075 away from 3685, we end up with 610.
Fetch the next digit (2) from the dividend, attach it to 610 and continue: 6102 / 615

Going ahead to step 8:
If we divide 6102 by 615, we get 9 and a remainder of 567.
Put 9 as the next digit of the answer. 
Result so far: 20959.0
Subtract 5535 from 6102 to get 567.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5670, and continue the process.

Moving on to step 9:
5670 divided by 615 is 9 with a remainder of 135.
The next digit of our result is 9. 
Result so far: 20959.9
If we take 5535 away from 5670, we end up with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

On to step 10:
615 can be fit into 1350 2 times, resulting in a remainder of 120.
Record the quotient 2 as the next digit in the result. 
Result so far: 20959.92
Subtracting 1230 from 1350 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 11:
615 goes into 1200 1 times with a remainder of 585.
Put 1 as the next digit of the answer. 
Result so far: 20959.921
The remainder is 585 after subtracting 615 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Going ahead to step 12:
If we divide 5850 by 615, we get 9 and a remainder of 315.
Use 9 as the next digit of our solution. 
Result so far: 20959.9219
If we subtract 5535 from 5850, we get 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Going ahead to step 13:
3150 divided by 615 is 5 with a remainder of 75.
The next digit of our result is 5. 
Result so far: 20959.92195
If we subtract 3075 from 3150, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 14:
The number 615 fits into 750 1 times, leaving a remainder of 135.
The next digit of our result is 1. 
Result so far: 20959.921951
If we subtract 615 from 750, we get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Step 15:
The number 615 fits into 1350 2 times, leaving a remainder of 120.
Use 2 as the next digit of our solution. 
Result so far: 20959.9219512
The remainder is 120 after subtracting 1230 from 1350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 16:
1200 divided by 615 is 1 with a remainder of 585.
Write down 1 as next digit of the result. 
Result so far: 20959.92195121
If we take 615 away from 1200, we end up with 585.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

The final outcome is 20959.92195121, with a leftover of 5.85e-07.