55276615 ÷ 421 
Let's see how many times 421 fits into 55276615.

Let's proceed to step 1:
When dividing 5 by 421, we get 0 with 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.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 421

Let's proceed to step 2:
421 can be fit into 55 0 times, resulting in a remainder of 55.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 55 to get 55.
Grab the next digit (2) from the dividend, add it to 55, then carry on: 552 / 421

On to step 3:
The number 421 fits into 552 1 times, leaving a remainder of 131.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 421 from 552 leaves us with 131.
Fetch the next digit (7) from the dividend, attach it to 131 and continue: 1317 / 421

Step 4:
If we divide 1317 by 421, we get 3 and a remainder of 54.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we subtract 1263 from 1317, we get 54.
Append the next digit (6) from the dividend to 54 and continue with: 546 / 421

On to step 5:
546 divided by 421 is 1 with a remainder of 125.
The number 1 becomes the next digit in our result. 
Result so far: 131.0
If we take 421 away from 546, we end up with 125.
Take the next digit (6) from the dividend and append it to 125, then repeat: 1256 / 421

On to step 6:
1256 divided by 421 is 2 with a remainder of 414.
The next digit of our result is 2. 
Result so far: 1312.0
Deduct 842 from 1256 and we're left with 414.
Grab the next digit (1) from the dividend, add it to 414, then carry on: 4141 / 421

On to step 7:
When dividing 4141 by 421, we get 9 with a remainder of 352.
Use 9 as the next digit of our solution. 
Result so far: 13129.0
Subtracting 3789 from 4141 leaves us with 352.
Fetch the next digit (5) from the dividend, attach it to 352 and continue: 3525 / 421

Advancing to step 8:
If we divide 3525 by 421, we get 8 and a remainder of 157.
Put 8 as the next digit of the answer. 
Result so far: 131298.0
If we subtract 3368 from 3525, we get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Step 9:
421 can be fit into 1570 3 times, resulting in a remainder of 307.
The next digit of our result is 3. 
Result so far: 131298.3
If we take 1263 away from 1570, we end up with 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

Going ahead to step 10:
421 can be fit into 3070 7 times, resulting in a remainder of 123.
Record the quotient 7 as the next digit in the result. 
Result so far: 131298.37
If we subtract 2947 from 3070, we get 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Let's proceed to step 11:
1230 divided by 421 is 2 with a remainder of 388.
The next digit of our result is 2. 
Result so far: 131298.372
If we take 842 away from 1230, we end up with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Let's proceed to step 12:
When dividing 3880 by 421, we get 9 with a remainder of 91.
Write down 9 as next digit of the result. 
Result so far: 131298.3729
Subtract 3789 from 3880 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Let's proceed to step 13:
The number 421 fits into 910 2 times, leaving a remainder of 68.
Put 2 as the next digit of the answer. 
Result so far: 131298.37292
If we subtract 842 from 910, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 14:
680 divided by 421 is 1 with a remainder of 259.
Record the quotient 1 as the next digit in the result. 
Result so far: 131298.372921
Subtracting 421 from 680 leaves us with 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

On to step 15:
The number 421 fits into 2590 6 times, leaving a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 131298.3729216
Deduct 2526 from 2590 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 16:
421 can be fit into 640 1 times, resulting in a remainder of 219.
The number 1 becomes the next digit in our result. 
Result so far: 131298.37292161
Deduct 421 from 640 and we're left with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

After the division, we end up with 131298.37292161 and a remainder of 2.19e-07.