54915021 ÷ 107 
We want to figure out the number of times 54915021 can be divided by 107.

On to step 1:
The number 107 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 107

On to step 2:
54 divided by 107 is 0 with a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Grab the next digit (9) from the dividend, add it to 54, then carry on: 549 / 107

On to step 3:
If we divide 549 by 107, we get 5 and a remainder of 14.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtract 535 from 549 to get 14.
Take the next digit (1) from the dividend and append it to 14, then repeat: 141 / 107

Step 4:
The number 107 fits into 141 1 times, leaving a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
If we take 107 away from 141, we end up with 34.
Bring next digit (5) of the dividend behind the 34 and repeat the process: 345 / 107

Step 5:
The number 107 fits into 345 3 times, leaving a remainder of 24.
Record the quotient 3 as the next digit in the result. 
Result so far: 513.0
If we subtract 321 from 345, we get 24.
Bring next digit (0) of the dividend behind the 24 and repeat the process: 240 / 107

On to step 6:
When dividing 240 by 107, we get 2 with a remainder of 26.
Write down 2 as next digit of the result. 
Result so far: 5132.0
If we subtract 214 from 240, we get 26.
Include the next digit (2) from the dividend after 26, then repeat: 262 / 107

Going ahead to step 7:
107 can be fit into 262 2 times, resulting in a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 51322.0
The remainder is 48 after subtracting 214 from 262.
Grab the next digit (1) from the dividend, add it to 48, then carry on: 481 / 107

On to step 8:
481 divided by 107 is 4 with a remainder of 53.
The next digit of our result is 4. 
Result so far: 513224.0
If we take 428 away from 481, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 9:
When dividing 530 by 107, we get 4 with a remainder of 102.
Record the quotient 4 as the next digit in the result. 
Result so far: 513224.4
Subtract 428 from 530 to get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Going ahead to step 10:
107 goes into 1020 9 times with a remainder of 57.
The number 9 becomes the next digit in our result. 
Result so far: 513224.49
The remainder is 57 after subtracting 963 from 1020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 11:
107 can be fit into 570 5 times, resulting in a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 513224.495
Subtracting 535 from 570 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 12:
When dividing 350 by 107, we get 3 with a remainder of 29.
Record the quotient 3 as the next digit in the result. 
Result so far: 513224.4953
Subtracting 321 from 350 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 13:
107 can be fit into 290 2 times, resulting in a remainder of 76.
Record the quotient 2 as the next digit in the result. 
Result so far: 513224.49532
The remainder is 76 after subtracting 214 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 14:
107 can be fit into 760 7 times, resulting in a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 513224.495327
Subtract 749 from 760 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 15:
110 divided by 107 is 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 513224.4953271
Deduct 107 from 110 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 16:
107 can be fit into 30 0 times, resulting in a remainder of 30.
The next digit of our result is 0. 
Result so far: 513224.4953271
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The quotient of the division is 513224.4953271, and the remainder is 3e-08.