55166342 divided by 521 
We want to divide 55166342 by 521.

On to step 1:
The number 521 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 521

Advancing to step 2:
The number 521 fits into 55 0 times, leaving a remainder of 55.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 55, we get 55.
Include the next digit (1) from the dividend after 55, then repeat: 551 / 521

Advancing to step 3:
521 goes into 551 1 times with a remainder of 30.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 30 after subtracting 521 from 551.
Append the next digit (6) from the dividend to 30 and continue with: 306 / 521

On to step 4:
521 can be fit into 306 0 times, resulting in a remainder of 306.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 306 after subtracting 0 from 306.
Include the next digit (6) from the dividend after 306, then repeat: 3066 / 521

Advancing to step 5:
521 goes into 3066 5 times with a remainder of 461.
Write down 5 as next digit of the result. 
Result so far: 105.0
If we take 2605 away from 3066, we end up with 461.
Take the next digit (3) from the dividend and append it to 461, then repeat: 4613 / 521

Let's proceed to step 6:
If we divide 4613 by 521, we get 8 and a remainder of 445.
Write down 8 as next digit of the result. 
Result so far: 1058.0
If we take 4168 away from 4613, we end up with 445.
Append the next digit (4) from the dividend to 445 and continue with: 4454 / 521

Step 7:
When dividing 4454 by 521, we get 8 with a remainder of 286.
Write down 8 as next digit of the result. 
Result so far: 10588.0
Subtract 4168 from 4454 to get 286.
Include the next digit (2) from the dividend after 286, then repeat: 2862 / 521

Going ahead to step 8:
2862 divided by 521 is 5 with a remainder of 257.
Put 5 as the next digit of the answer. 
Result so far: 105885.0
If we subtract 2605 from 2862, we get 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Advancing to step 9:
If we divide 2570 by 521, we get 4 and a remainder of 486.
Use 4 as the next digit of our solution. 
Result so far: 105885.4
Subtracting 2084 from 2570 leaves us with 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

On to step 10:
If we divide 4860 by 521, we get 9 and a remainder of 171.
Record the quotient 9 as the next digit in the result. 
Result so far: 105885.49
Subtract 4689 from 4860 to get 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

On to step 11:
If we divide 1710 by 521, we get 3 and a remainder of 147.
Record the quotient 3 as the next digit in the result. 
Result so far: 105885.493
Deduct 1563 from 1710 and we're left with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Moving on to step 12:
When dividing 1470 by 521, we get 2 with a remainder of 428.
Use 2 as the next digit of our solution. 
Result so far: 105885.4932
If we take 1042 away from 1470, we end up with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Moving on to step 13:
The number 521 fits into 4280 8 times, leaving a remainder of 112.
Use 8 as the next digit of our solution. 
Result so far: 105885.49328
Subtracting 4168 from 4280 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 14:
If we divide 1120 by 521, we get 2 and a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 105885.493282
Subtracting 1042 from 1120 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 15:
521 goes into 780 1 times with a remainder of 259.
Write down 1 as next digit of the result. 
Result so far: 105885.4932821
If we take 521 away from 780, we end up 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 16:
When dividing 2590 by 521, we get 4 with a remainder of 506.
Use 4 as the next digit of our solution. 
Result so far: 105885.49328214
The remainder is 506 after subtracting 2084 from 2590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

After the division, we end up with 105885.49328214 and a remainder of 5.06e-07.