We look at the division of 420720 by 88 
We want to figure out the number of times 420720 can be divided by 88.

Step 1:
When dividing 4 by 88, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 88

Going ahead to step 2:
42 divided by 88 is 0 with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 88

Let's proceed to step 3:
88 can be fit into 420 4 times, resulting in a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 352 from 420 leaves us with 68.
Append the next digit (7) from the dividend to 68 and continue with: 687 / 88

Going ahead to step 4:
When dividing 687 by 88, we get 7 with a remainder of 71.
Put 7 as the next digit of the answer. 
Result so far: 47.0
Subtracting 616 from 687 leaves us with 71.
Append the next digit (2) from the dividend to 71 and continue with: 712 / 88

Moving on to step 5:
The number 88 fits into 712 8 times, leaving a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 478.0
Subtracting 704 from 712 leaves us with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 88

Going ahead to step 6:
80 divided by 88 is 0 with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 4780.0
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 7:
When dividing 800 by 88, we get 9 with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 4780.9
Subtracting 792 from 800 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 8:
88 goes into 80 0 times with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 4780.9
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 9:
If we divide 800 by 88, we get 9 and a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 4780.909
Subtracting 792 from 800 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
80 divided by 88 is 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 4780.909
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 11:
88 goes into 800 9 times with a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 4780.90909
Subtract 792 from 800 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 12:
88 can be fit into 80 0 times, resulting in a remainder of 80.
The next digit of our result is 0. 
Result so far: 4780.90909
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 13:
When dividing 800 by 88, we get 9 with a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 4780.9090909
The remainder is 8 after subtracting 792 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 14:
88 can be fit into 80 0 times, resulting in a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 4780.9090909
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final outcome is 4780.9090909, with a leftover of 8e-08.