81921429 divided by 72 
We want to divide 81921429 by 72.

Moving on to step 1:
72 goes into 8 0 times 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.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 72

Going ahead to step 2:
If we divide 81 by 72, we get 1 and a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 72 from 81, we get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 72

Moving on to step 3:
The number 72 fits into 99 1 times, leaving a remainder of 27.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we take 72 away from 99, we end up with 27.
Append the next digit (2) from the dividend to 27 and continue with: 272 / 72

Moving on to step 4:
If we divide 272 by 72, we get 3 and a remainder of 56.
Write down 3 as next digit of the result. 
Result so far: 113.0
The remainder is 56 after subtracting 216 from 272.
Take the next digit (1) from the dividend and append it to 56, then repeat: 561 / 72

Going ahead to step 5:
72 can be fit into 561 7 times, resulting in a remainder of 57.
Record the quotient 7 as the next digit in the result. 
Result so far: 1137.0
Subtract 504 from 561 to get 57.
Append the next digit (4) from the dividend to 57 and continue with: 574 / 72

Step 6:
72 goes into 574 7 times with a remainder of 70.
Record the quotient 7 as the next digit in the result. 
Result so far: 11377.0
If we take 504 away from 574, we end up with 70.
Take the next digit (2) from the dividend and append it to 70, then repeat: 702 / 72

Let's proceed to step 7:
If we divide 702 by 72, we get 9 and a remainder of 54.
Record the quotient 9 as the next digit in the result. 
Result so far: 113779.0
Deduct 648 from 702 and we're left with 54.
Bring next digit (9) of the dividend behind the 54 and repeat the process: 549 / 72

Going ahead to step 8:
72 can be fit into 549 7 times, resulting in a remainder of 45.
Record the quotient 7 as the next digit in the result. 
Result so far: 1137797.0
If we take 504 away from 549, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 9:
If we divide 450 by 72, we get 6 and a remainder of 18.
The next digit of our result is 6. 
Result so far: 1137797.6
If we subtract 432 from 450, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 10:
180 divided by 72 is 2 with a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 1137797.62
The remainder is 36 after subtracting 144 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 11:
The number 72 fits into 360 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 1137797.625
The remainder is 0 after subtracting 360 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 12:
72 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1137797.625
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 13:
When dividing 0 by 72, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1137797.625
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 1137797.625, with a leftover of 0.0.