72991 divided by 12 
We want to figure out the number of times 72991 can be divided by 12.

Advancing to step 1:
If we divide 7 by 12, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 12

On to step 2:
If we divide 72 by 12, we get 6 and a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 0 after subtracting 72 from 72.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 12

Advancing to step 3:
The number 12 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 60.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 12

Let's proceed to step 4:
12 can be fit into 99 8 times, resulting in a remainder of 3.
The number 8 becomes the next digit in our result. 
Result so far: 608.0
If we take 96 away from 99, we end up with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 12

Step 5:
The number 12 fits into 31 2 times, leaving a remainder of 7.
Write down 2 as next digit of the result. 
Result so far: 6082.0
If we subtract 24 from 31, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 6:
If we divide 70 by 12, we get 5 and a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 6082.5
Subtracting 60 from 70 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
12 goes into 100 8 times with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 6082.58
If we take 96 away from 100, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 8:
40 divided by 12 is 3 with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 6082.583
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 6082.5833
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 6082.5833 and a remainder of 4e-05.