We look at the division of 88412520 by 420 
We're looking to find how many times 420 goes into 88412520.

Going ahead to step 1:
If we divide 8 by 420, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 420

Advancing to step 2:
When dividing 88 by 420, we get 0 with a remainder of 88.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 88 and we're left with 88.
Append the next digit (4) from the dividend to 88 and continue with: 884 / 420

On to step 3:
When dividing 884 by 420, we get 2 with a remainder of 44.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 840 from 884, we get 44.
Bring next digit (1) of the dividend behind the 44 and repeat the process: 441 / 420

Going ahead to step 4:
441 divided by 420 is 1 with a remainder of 21.
The next digit of our result is 1. 
Result so far: 21.0
The remainder is 21 after subtracting 420 from 441.
Fetch the next digit (2) from the dividend, attach it to 21 and continue: 212 / 420

Let's proceed to step 5:
212 divided by 420 is 0 with a remainder of 212.
Record the quotient 0 as the next digit in the result. 
Result so far: 210.0
Deduct 0 from 212 and we're left with 212.
Include the next digit (5) from the dividend after 212, then repeat: 2125 / 420

Advancing to step 6:
When dividing 2125 by 420, we get 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 2105.0
Subtracting 2100 from 2125 leaves us with 25.
Bring next digit (2) of the dividend behind the 25 and repeat the process: 252 / 420

On to step 7:
If we divide 252 by 420, we get 0 and a remainder of 252.
Use 0 as the next digit of our solution. 
Result so far: 21050.0
Subtracting 0 from 252 leaves us with 252.
Fetch the next digit (0) from the dividend, attach it to 252 and continue: 2520 / 420

Step 8:
The number 420 fits into 2520 6 times, leaving a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 210506.0
The remainder is 0 after subtracting 2520 from 2520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
If we divide 0 by 420, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 210506.0
Deduct 0 from 0 and we're left 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.

Let's proceed to step 10:
0 divided by 420 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 210506.0
Deduct 0 from 0 and we're left 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.

Our division results in 210506.0 with a remaining 0.0.