We're dividing 12356249 by 964 
We want to divide 12356249 by 964.

Going ahead to step 1:
If we divide 1 by 964, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 964

On to step 2:
12 divided by 964 is 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Grab the next digit (3) from the dividend, add it to 12, then carry on: 123 / 964

Let's proceed to step 3:
When dividing 123 by 964, we get 0 with a remainder of 123.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 123, we get 123.
Bring next digit (5) of the dividend behind the 123 and repeat the process: 1235 / 964

Let's proceed to step 4:
If we divide 1235 by 964, we get 1 and a remainder of 271.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 964 from 1235, we get 271.
Append the next digit (6) from the dividend to 271 and continue with: 2716 / 964

Moving on to step 5:
When dividing 2716 by 964, we get 2 with a remainder of 788.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 1928 from 2716 to get 788.
Take the next digit (2) from the dividend and append it to 788, then repeat: 7882 / 964

Let's proceed to step 6:
If we divide 7882 by 964, we get 8 and a remainder of 170.
Use 8 as the next digit of our solution. 
Result so far: 128.0
Deduct 7712 from 7882 and we're left with 170.
Include the next digit (4) from the dividend after 170, then repeat: 1704 / 964

On to step 7:
1704 divided by 964 is 1 with a remainder of 740.
The next digit of our result is 1. 
Result so far: 1281.0
If we subtract 964 from 1704, we get 740.
Take the next digit (9) from the dividend and append it to 740, then repeat: 7409 / 964

Let's proceed to step 8:
964 goes into 7409 7 times with a remainder of 661.
The next digit of our result is 7. 
Result so far: 12817.0
If we subtract 6748 from 7409, we get 661.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6610, and continue the process.

Let's proceed to step 9:
964 can be fit into 6610 6 times, resulting in a remainder of 826.
The number 6 becomes the next digit in our result. 
Result so far: 12817.6
Deduct 5784 from 6610 and we're left with 826.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8260, and continue the process.

On to step 10:
964 can be fit into 8260 8 times, resulting in a remainder of 548.
Put 8 as the next digit of the answer. 
Result so far: 12817.68
Deduct 7712 from 8260 and we're left with 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Advancing to step 11:
When dividing 5480 by 964, we get 5 with a remainder of 660.
The number 5 becomes the next digit in our result. 
Result so far: 12817.685
If we subtract 4820 from 5480, we get 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Let's proceed to step 12:
If we divide 6600 by 964, we get 6 and a remainder of 816.
Use 6 as the next digit of our solution. 
Result so far: 12817.6856
If we take 5784 away from 6600, we end up with 816.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8160, and continue the process.

Step 13:
If we divide 8160 by 964, we get 8 and a remainder of 448.
Record the quotient 8 as the next digit in the result. 
Result so far: 12817.68568
Deduct 7712 from 8160 and we're left with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

On to step 14:
964 goes into 4480 4 times with a remainder of 624.
Write down 4 as next digit of the result. 
Result so far: 12817.685684
The remainder is 624 after subtracting 3856 from 4480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Going ahead to step 15:
When dividing 6240 by 964, we get 6 with a remainder of 456.
The number 6 becomes the next digit in our result. 
Result so far: 12817.6856846
If we take 5784 away from 6240, we end up with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Let's proceed to step 16:
964 can be fit into 4560 4 times, resulting in a remainder of 704.
Record the quotient 4 as the next digit in the result. 
Result so far: 12817.68568464
Subtract 3856 from 4560 to get 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

The final outcome is 12817.68568464, with a leftover of 7.04e-07.