We look at the division of 84414559 by 420 
Our goal is to divide 84414559 by 420.

Advancing to step 1:
When dividing 8 by 420, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 420

Moving on to step 2:
420 can be fit into 84 0 times, resulting in a remainder of 84.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 84, we end up with 84.
Fetch the next digit (4) from the dividend, attach it to 84 and continue: 844 / 420

Let's proceed to step 3:
420 can be fit into 844 2 times, resulting in a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 840 away from 844, we end up with 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 420

Step 4:
If we divide 41 by 420, we get 0 and a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 20.0
Subtract 0 from 41 to get 41.
Grab the next digit (4) from the dividend, add it to 41, then carry on: 414 / 420

Advancing to step 5:
The number 420 fits into 414 0 times, leaving a remainder of 414.
Use 0 as the next digit of our solution. 
Result so far: 200.0
If we subtract 0 from 414, we get 414.
Grab the next digit (5) from the dividend, add it to 414, then carry on: 4145 / 420

Advancing to step 6:
If we divide 4145 by 420, we get 9 and a remainder of 365.
The next digit of our result is 9. 
Result so far: 2009.0
If we subtract 3780 from 4145, we get 365.
Fetch the next digit (5) from the dividend, attach it to 365 and continue: 3655 / 420

Advancing to step 7:
When dividing 3655 by 420, we get 8 with a remainder of 295.
The number 8 becomes the next digit in our result. 
Result so far: 20098.0
Subtract 3360 from 3655 to get 295.
Include the next digit (9) from the dividend after 295, then repeat: 2959 / 420

Advancing to step 8:
The number 420 fits into 2959 7 times, leaving a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 200987.0
If we take 2940 away from 2959, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 9:
When dividing 190 by 420, we get 0 with a remainder of 190.
Put 0 as the next digit of the answer. 
Result so far: 200987.0
If we subtract 0 from 190, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

On to step 10:
The number 420 fits into 1900 4 times, leaving a remainder of 220.
The number 4 becomes the next digit in our result. 
Result so far: 200987.04
Subtracting 1680 from 1900 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 11:
2200 divided by 420 is 5 with a remainder of 100.
Put 5 as the next digit of the answer. 
Result so far: 200987.045
If we subtract 2100 from 2200, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 12:
When dividing 1000 by 420, we get 2 with a remainder of 160.
Record the quotient 2 as the next digit in the result. 
Result so far: 200987.0452
The remainder is 160 after subtracting 840 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 13:
The number 420 fits into 1600 3 times, leaving a remainder of 340.
Use 3 as the next digit of our solution. 
Result so far: 200987.04523
If we subtract 1260 from 1600, we get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 14:
420 can be fit into 3400 8 times, resulting in a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 200987.045238
Subtracting 3360 from 3400 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 15:
The number 420 fits into 400 0 times, leaving a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 200987.045238
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 16:
420 can be fit into 4000 9 times, resulting in a remainder of 220.
The next digit of our result is 9. 
Result so far: 200987.04523809
Deduct 3780 from 4000 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

The final outcome is 200987.04523809, with a leftover of 2.2e-07.