Let's divide 72217798 by 451
Let's see how many times 451 fits into 72217798.

Advancing to step 1:
When dividing 7 by 451, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 451

On to step 2:
The number 451 fits into 72 0 times, leaving a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 72 to get 72.
Append the next digit (2) from the dividend to 72 and continue with: 722 / 451

Moving on to step 3:
When dividing 722 by 451, we get 1 with a remainder of 271.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 451 from 722 and we're left with 271.
Take the next digit (1) from the dividend and append it to 271, then repeat: 2711 / 451

On to step 4:
451 goes into 2711 6 times with a remainder of 5.
Write down 6 as next digit of the result. 
Result so far: 16.0
Subtracting 2706 from 2711 leaves us with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 451

Let's proceed to step 5:
57 divided by 451 is 0 with a remainder of 57.
The number 0 becomes the next digit in our result. 
Result so far: 160.0
Deduct 0 from 57 and we're left with 57.
Take the next digit (7) from the dividend and append it to 57, then repeat: 577 / 451

Going ahead to step 6:
When dividing 577 by 451, we get 1 with a remainder of 126.
Put 1 as the next digit of the answer. 
Result so far: 1601.0
The remainder is 126 after subtracting 451 from 577.
Fetch the next digit (9) from the dividend, attach it to 126 and continue: 1269 / 451

Let's proceed to step 7:
If we divide 1269 by 451, we get 2 and a remainder of 367.
Write down 2 as next digit of the result. 
Result so far: 16012.0
The remainder is 367 after subtracting 902 from 1269.
Append the next digit (8) from the dividend to 367 and continue with: 3678 / 451

Step 8:
If we divide 3678 by 451, we get 8 and a remainder of 70.
The number 8 becomes the next digit in our result. 
Result so far: 160128.0
The remainder is 70 after subtracting 3608 from 3678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 9:
When dividing 700 by 451, we get 1 with a remainder of 249.
Record the quotient 1 as the next digit in the result. 
Result so far: 160128.1
Subtract 451 from 700 to get 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

On to step 10:
451 goes into 2490 5 times with a remainder of 235.
Record the quotient 5 as the next digit in the result. 
Result so far: 160128.15
If we take 2255 away from 2490, we end up with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Let's proceed to step 11:
If we divide 2350 by 451, we get 5 and a remainder of 95.
The next digit of our result is 5. 
Result so far: 160128.155
If we take 2255 away from 2350, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

The final outcome is 160128.155, with a leftover of 0.0095.