Let's divide 15780215 by 126
Our goal is to divide 15780215 by 126.

On to step 1:
126 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 126

Going ahead to step 2:
The number 126 fits into 15 0 times, leaving a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 126

Going ahead to step 3:
If we divide 157 by 126, we get 1 and a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 126 from 157 leaves us with 31.
Append the next digit (8) from the dividend to 31 and continue with: 318 / 126

Going ahead to step 4:
126 goes into 318 2 times with a remainder of 66.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 252 from 318, we get 66.
Take the next digit (0) from the dividend and append it to 66, then repeat: 660 / 126

On to step 5:
126 can be fit into 660 5 times, resulting in a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 125.0
Subtracting 630 from 660 leaves us with 30.
Append the next digit (2) from the dividend to 30 and continue with: 302 / 126

Let's proceed to step 6:
If we divide 302 by 126, we get 2 and a remainder of 50.
The number 2 becomes the next digit in our result. 
Result so far: 1252.0
If we take 252 away from 302, we end up with 50.
Bring next digit (1) of the dividend behind the 50 and repeat the process: 501 / 126

Going ahead to step 7:
The number 126 fits into 501 3 times, leaving a remainder of 123.
Record the quotient 3 as the next digit in the result. 
Result so far: 12523.0
If we subtract 378 from 501, we get 123.
Fetch the next digit (5) from the dividend, attach it to 123 and continue: 1235 / 126

Step 8:
126 goes into 1235 9 times with a remainder of 101.
Record the quotient 9 as the next digit in the result. 
Result so far: 125239.0
If we subtract 1134 from 1235, we get 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Moving on to step 9:
126 goes into 1010 8 times with a remainder of 2.
The next digit of our result is 8. 
Result so far: 125239.8
If we take 1008 away from 1010, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 10:
126 goes into 20 0 times with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 125239.8
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 11:
200 divided by 126 is 1 with a remainder of 74.
Write down 1 as next digit of the result. 
Result so far: 125239.801
If we subtract 126 from 200, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 12:
The number 126 fits into 740 5 times, leaving a remainder of 110.
Record the quotient 5 as the next digit in the result. 
Result so far: 125239.8015
If we subtract 630 from 740, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 13:
126 goes into 1100 8 times with a remainder of 92.
Record the quotient 8 as the next digit in the result. 
Result so far: 125239.80158
If we subtract 1008 from 1100, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 14:
When dividing 920 by 126, we get 7 with a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 125239.801587
The remainder is 38 after subtracting 882 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 15:
If we divide 380 by 126, we get 3 and a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 125239.8015873
If we subtract 378 from 380, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 16:
The number 126 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 125239.8015873
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 125239.8015873 with a balance of 2e-08.