72036959 divided by 858 
We want to figure out the number of times 72036959 can be divided by 858.

Let's proceed to step 1:
858 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 858

Let's proceed to step 2:
858 goes into 72 0 times with a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Take the next digit (0) from the dividend and append it to 72, then repeat: 720 / 858

Going ahead to step 3:
When dividing 720 by 858, we get 0 with a remainder of 720.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 720 leaves us with 720.
Fetch the next digit (3) from the dividend, attach it to 720 and continue: 7203 / 858

Moving on to step 4:
858 can be fit into 7203 8 times, resulting in a remainder of 339.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 6864 from 7203 and we're left with 339.
Take the next digit (6) from the dividend and append it to 339, then repeat: 3396 / 858

On to step 5:
The number 858 fits into 3396 3 times, leaving a remainder of 822.
The number 3 becomes the next digit in our result. 
Result so far: 83.0
Subtracting 2574 from 3396 leaves us with 822.
Bring next digit (9) of the dividend behind the 822 and repeat the process: 8229 / 858

Step 6:
858 can be fit into 8229 9 times, resulting in a remainder of 507.
The number 9 becomes the next digit in our result. 
Result so far: 839.0
If we subtract 7722 from 8229, we get 507.
Take the next digit (5) from the dividend and append it to 507, then repeat: 5075 / 858

Let's proceed to step 7:
858 can be fit into 5075 5 times, resulting in a remainder of 785.
Use 5 as the next digit of our solution. 
Result so far: 8395.0
The remainder is 785 after subtracting 4290 from 5075.
Fetch the next digit (9) from the dividend, attach it to 785 and continue: 7859 / 858

Going ahead to step 8:
The number 858 fits into 7859 9 times, leaving a remainder of 137.
The next digit of our result is 9. 
Result so far: 83959.0
If we subtract 7722 from 7859, we get 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Moving on to step 9:
858 can be fit into 1370 1 times, resulting in a remainder of 512.
The number 1 becomes the next digit in our result. 
Result so far: 83959.1
Deduct 858 from 1370 and we're left with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

On to step 10:
858 goes into 5120 5 times with a remainder of 830.
The number 5 becomes the next digit in our result. 
Result so far: 83959.15
Subtract 4290 from 5120 to get 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8300, and continue the process.

Advancing to step 11:
The number 858 fits into 8300 9 times, leaving a remainder of 578.
Put 9 as the next digit of the answer. 
Result so far: 83959.159
Subtracting 7722 from 8300 leaves us with 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Moving on to step 12:
5780 divided by 858 is 6 with a remainder of 632.
Put 6 as the next digit of the answer. 
Result so far: 83959.1596
Subtract 5148 from 5780 to get 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Let's proceed to step 13:
When dividing 6320 by 858, we get 7 with a remainder of 314.
Use 7 as the next digit of our solution. 
Result so far: 83959.15967
Subtracting 6006 from 6320 leaves us with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Advancing to step 14:
3140 divided by 858 is 3 with a remainder of 566.
The next digit of our result is 3. 
Result so far: 83959.159673
Deduct 2574 from 3140 and we're left with 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

Advancing to step 15:
5660 divided by 858 is 6 with a remainder of 512.
Use 6 as the next digit of our solution. 
Result so far: 83959.1596736
If we subtract 5148 from 5660, we get 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Moving on to step 16:
The number 858 fits into 5120 5 times, leaving a remainder of 830.
The number 5 becomes the next digit in our result. 
Result so far: 83959.15967365
If we take 4290 away from 5120, we end up with 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8300, and continue the process.

The final outcome is 83959.15967365, with a leftover of 8.3e-07.