Let's divide 11973997 by 858
We want to figure out the number of times 11973997 can be divided by 858.

Going ahead to step 1:
1 divided by 858 is 0 with 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 (1) from the dividend, attach it to 1 and continue: 11 / 858

Let's proceed to step 2:
858 can be fit into 11 0 times, resulting in a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 11, we get 11.
Include the next digit (9) from the dividend after 11, then repeat: 119 / 858

On to step 3:
858 can be fit into 119 0 times, resulting in a remainder of 119.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 119 leaves us with 119.
Append the next digit (7) from the dividend to 119 and continue with: 1197 / 858

Moving on to step 4:
1197 divided by 858 is 1 with a remainder of 339.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 339 after subtracting 858 from 1197.
Take the next digit (3) from the dividend and append it to 339, then repeat: 3393 / 858

Moving on to step 5:
The number 858 fits into 3393 3 times, leaving a remainder of 819.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 2574 from 3393, we get 819.
Take the next digit (9) from the dividend and append it to 819, then repeat: 8199 / 858

Let's proceed to step 6:
858 goes into 8199 9 times with a remainder of 477.
The next digit of our result is 9. 
Result so far: 139.0
If we subtract 7722 from 8199, we get 477.
Grab the next digit (9) from the dividend, add it to 477, then carry on: 4779 / 858

Step 7:
When dividing 4779 by 858, we get 5 with a remainder of 489.
Record the quotient 5 as the next digit in the result. 
Result so far: 1395.0
If we subtract 4290 from 4779, we get 489.
Bring next digit (7) of the dividend behind the 489 and repeat the process: 4897 / 858

Advancing to step 8:
4897 divided by 858 is 5 with a remainder of 607.
Put 5 as the next digit of the answer. 
Result so far: 13955.0
If we subtract 4290 from 4897, we get 607.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6070, and continue the process.

Advancing to step 9:
6070 divided by 858 is 7 with a remainder of 64.
The next digit of our result is 7. 
Result so far: 13955.7
If we take 6006 away from 6070, we end up with 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:
When dividing 640 by 858, we get 0 with a remainder of 640.
Record the quotient 0 as the next digit in the result. 
Result so far: 13955.7
The remainder is 640 after subtracting 0 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Step 11:
858 can be fit into 6400 7 times, resulting in a remainder of 394.
Use 7 as the next digit of our solution. 
Result so far: 13955.707
If we take 6006 away from 6400, we end up with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Advancing to step 12:
3940 divided by 858 is 4 with a remainder of 508.
The number 4 becomes the next digit in our result. 
Result so far: 13955.7074
If we take 3432 away from 3940, we end up with 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Going ahead to step 13:
The number 858 fits into 5080 5 times, leaving a remainder of 790.
Record the quotient 5 as the next digit in the result. 
Result so far: 13955.70745
If we take 4290 away from 5080, we end up with 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7900, and continue the process.

Going ahead to step 14:
7900 divided by 858 is 9 with a remainder of 178.
Put 9 as the next digit of the answer. 
Result so far: 13955.707459
If we subtract 7722 from 7900, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

On to step 15:
When dividing 1780 by 858, we get 2 with a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 13955.7074592
Subtract 1716 from 1780 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.

Let's proceed to step 16:
858 goes into 640 0 times with a remainder of 640.
Record the quotient 0 as the next digit in the result. 
Result so far: 13955.7074592
If we take 0 away from 640, we end up with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

After the division, we end up with 13955.7074592 and a remainder of 6.4e-07.