53915841 ÷ 991 
Our goal is to divide 53915841 by 991.

Moving on to step 1:
5 divided by 991 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 991

Advancing to step 2:
The number 991 fits into 53 0 times, leaving a remainder of 53.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 53 after subtracting 0 from 53.
Bring next digit (9) of the dividend behind the 53 and repeat the process: 539 / 991

Let's proceed to step 3:
991 goes into 539 0 times with a remainder of 539.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 539, we get 539.
Bring next digit (1) of the dividend behind the 539 and repeat the process: 5391 / 991

Advancing to step 4:
If we divide 5391 by 991, we get 5 and a remainder of 436.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 4955 from 5391 leaves us with 436.
Include the next digit (5) from the dividend after 436, then repeat: 4365 / 991

On to step 5:
If we divide 4365 by 991, we get 4 and a remainder of 401.
Put 4 as the next digit of the answer. 
Result so far: 54.0
If we subtract 3964 from 4365, we get 401.
Include the next digit (8) from the dividend after 401, then repeat: 4018 / 991

Let's proceed to step 6:
991 can be fit into 4018 4 times, resulting in a remainder of 54.
Record the quotient 4 as the next digit in the result. 
Result so far: 544.0
Subtract 3964 from 4018 to get 54.
Append the next digit (4) from the dividend to 54 and continue with: 544 / 991

Let's proceed to step 7:
991 can be fit into 544 0 times, resulting in a remainder of 544.
The number 0 becomes the next digit in our result. 
Result so far: 5440.0
The remainder is 544 after subtracting 0 from 544.
Fetch the next digit (1) from the dividend, attach it to 544 and continue: 5441 / 991

On to step 8:
The number 991 fits into 5441 5 times, leaving a remainder of 486.
Use 5 as the next digit of our solution. 
Result so far: 54405.0
The remainder is 486 after subtracting 4955 from 5441.
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 9:
991 can be fit into 4860 4 times, resulting in a remainder of 896.
Use 4 as the next digit of our solution. 
Result so far: 54405.4
If we take 3964 away from 4860, we end up with 896.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8960, and continue the process.

Let's proceed to step 10:
The number 991 fits into 8960 9 times, leaving a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 54405.49
The remainder is 41 after subtracting 8919 from 8960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 11:
410 divided by 991 is 0 with a remainder of 410.
Record the quotient 0 as the next digit in the result. 
Result so far: 54405.49
If we subtract 0 from 410, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Let's proceed to step 12:
4100 divided by 991 is 4 with a remainder of 136.
Record the quotient 4 as the next digit in the result. 
Result so far: 54405.4904
If we subtract 3964 from 4100, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Step 13:
If we divide 1360 by 991, we get 1 and a remainder of 369.
The next digit of our result is 1. 
Result so far: 54405.49041
If we subtract 991 from 1360, we get 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Moving on to step 14:
The number 991 fits into 3690 3 times, leaving a remainder of 717.
Use 3 as the next digit of our solution. 
Result so far: 54405.490413
Subtract 2973 from 3690 to get 717.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7170, and continue the process.

On to step 15:
The number 991 fits into 7170 7 times, leaving a remainder of 233.
Write down 7 as next digit of the result. 
Result so far: 54405.4904137
Subtracting 6937 from 7170 leaves us with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Step 16:
The number 991 fits into 2330 2 times, leaving a remainder of 348.
The next digit of our result is 2. 
Result so far: 54405.49041372
Deduct 1982 from 2330 and we're left with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

In conclusion, the division gives 54405.49041372 with a balance of 3.48e-07.