Let's divide 8151231 by 961
We want to figure out the number of times 8151231 can be divided by 961.

Step 1:
When dividing 8 by 961, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 961

Step 2:
81 divided by 961 is 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Append the next digit (5) from the dividend to 81 and continue with: 815 / 961

Moving on to step 3:
If we divide 815 by 961, we get 0 and a remainder of 815.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 815 after subtracting 0 from 815.
Bring next digit (1) of the dividend behind the 815 and repeat the process: 8151 / 961

Advancing to step 4:
961 goes into 8151 8 times with a remainder of 463.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 7688 from 8151 and we're left with 463.
Append the next digit (2) from the dividend to 463 and continue with: 4632 / 961

Step 5:
When dividing 4632 by 961, we get 4 with a remainder of 788.
Use 4 as the next digit of our solution. 
Result so far: 84.0
If we subtract 3844 from 4632, we get 788.
Grab the next digit (3) from the dividend, add it to 788, then carry on: 7883 / 961

Going ahead to step 6:
When dividing 7883 by 961, we get 8 with a remainder of 195.
Write down 8 as next digit of the result. 
Result so far: 848.0
If we take 7688 away from 7883, we end up with 195.
Grab the next digit (1) from the dividend, add it to 195, then carry on: 1951 / 961

On to step 7:
If we divide 1951 by 961, we get 2 and a remainder of 29.
Write down 2 as next digit of the result. 
Result so far: 8482.0
Subtract 1922 from 1951 to get 29.
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:
The number 961 fits into 290 0 times, leaving a remainder of 290.
Write down 0 as next digit of the result. 
Result so far: 8482.0
Subtract 0 from 290 to get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 9:
If we divide 2900 by 961, we get 3 and a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 8482.03
If we take 2883 away from 2900, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 10:
When dividing 170 by 961, we get 0 with a remainder of 170.
Put 0 as the next digit of the answer. 
Result so far: 8482.03
If we take 0 away from 170, we end up with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 11:
961 can be fit into 1700 1 times, resulting in a remainder of 739.
Record the quotient 1 as the next digit in the result. 
Result so far: 8482.0301
If we subtract 961 from 1700, we get 739.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7390, and continue the process.

On to step 12:
If we divide 7390 by 961, we get 7 and a remainder of 663.
The number 7 becomes the next digit in our result. 
Result so far: 8482.03017
Subtract 6727 from 7390 to get 663.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6630, and continue the process.

Advancing to step 13:
6630 divided by 961 is 6 with a remainder of 864.
Record the quotient 6 as the next digit in the result. 
Result so far: 8482.030176
If we subtract 5766 from 6630, we get 864.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8640, and continue the process.

Let's proceed to step 14:
961 goes into 8640 8 times with a remainder of 952.
Use 8 as the next digit of our solution. 
Result so far: 8482.0301768
Deduct 7688 from 8640 and we're left with 952.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9520, and continue the process.

Moving on to step 15:
9520 divided by 961 is 9 with a remainder of 871.
The number 9 becomes the next digit in our result. 
Result so far: 8482.03017689
Deduct 8649 from 9520 and we're left with 871.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8710, and continue the process.

Our division results in 8482.03017689 with a remaining 8.71e-07.