55184672 ÷ 421 
We want to figure out the number of times 55184672 can be divided by 421.

Let's proceed to step 1:
421 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 421

Moving on to step 2:
421 can be fit into 55 0 times, resulting in a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Fetch the next digit (1) from the dividend, attach it to 55 and continue: 551 / 421

Going ahead to step 3:
421 can be fit into 551 1 times, resulting in a remainder of 130.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 421 away from 551, we end up with 130.
Fetch the next digit (8) from the dividend, attach it to 130 and continue: 1308 / 421

Let's proceed to step 4:
When dividing 1308 by 421, we get 3 with a remainder of 45.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtracting 1263 from 1308 leaves us with 45.
Grab the next digit (4) from the dividend, add it to 45, then carry on: 454 / 421

Moving on to step 5:
If we divide 454 by 421, we get 1 and a remainder of 33.
The next digit of our result is 1. 
Result so far: 131.0
The remainder is 33 after subtracting 421 from 454.
Grab the next digit (6) from the dividend, add it to 33, then carry on: 336 / 421

Advancing to step 6:
421 goes into 336 0 times with a remainder of 336.
Put 0 as the next digit of the answer. 
Result so far: 1310.0
Subtracting 0 from 336 leaves us with 336.
Include the next digit (7) from the dividend after 336, then repeat: 3367 / 421

Let's proceed to step 7:
421 can be fit into 3367 7 times, resulting in a remainder of 420.
Put 7 as the next digit of the answer. 
Result so far: 13107.0
If we take 2947 away from 3367, we end up with 420.
Take the next digit (2) from the dividend and append it to 420, then repeat: 4202 / 421

Step 8:
421 goes into 4202 9 times with a remainder of 413.
The number 9 becomes the next digit in our result. 
Result so far: 131079.0
Deduct 3789 from 4202 and we're left with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

Let's proceed to step 9:
If we divide 4130 by 421, we get 9 and a remainder of 341.
Record the quotient 9 as the next digit in the result. 
Result so far: 131079.9
If we subtract 3789 from 4130, we get 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Let's proceed to step 10:
When dividing 3410 by 421, we get 8 with a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 131079.98
Subtract 3368 from 3410 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 11:
421 goes into 420 0 times with a remainder of 420.
The number 0 becomes the next digit in our result. 
Result so far: 131079.98
Subtracting 0 from 420 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Step 12:
421 goes into 4200 9 times with a remainder of 411.
Record the quotient 9 as the next digit in the result. 
Result so far: 131079.9809
Deduct 3789 from 4200 and we're left with 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

Step 13:
4110 divided by 421 is 9 with a remainder of 321.
The number 9 becomes the next digit in our result. 
Result so far: 131079.98099
If we subtract 3789 from 4110, we get 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

In conclusion, the division gives 131079.98099 with a balance of 0.000321.