51691370 divided by 991 
We want to divide 51691370 by 991.

On to step 1:
991 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 991

Step 2:
51 divided by 991 is 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Take the next digit (6) from the dividend and append it to 51, then repeat: 516 / 991

Going ahead to step 3:
The number 991 fits into 516 0 times, leaving a remainder of 516.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 516, we end up with 516.
Take the next digit (9) from the dividend and append it to 516, then repeat: 5169 / 991

Advancing to step 4:
If we divide 5169 by 991, we get 5 and a remainder of 214.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 214 after subtracting 4955 from 5169.
Include the next digit (1) from the dividend after 214, then repeat: 2141 / 991

Going ahead to step 5:
The number 991 fits into 2141 2 times, leaving a remainder of 159.
Put 2 as the next digit of the answer. 
Result so far: 52.0
Subtracting 1982 from 2141 leaves us with 159.
Take the next digit (3) from the dividend and append it to 159, then repeat: 1593 / 991

Advancing to step 6:
When dividing 1593 by 991, we get 1 with a remainder of 602.
Write down 1 as next digit of the result. 
Result so far: 521.0
If we take 991 away from 1593, we end up with 602.
Bring next digit (7) of the dividend behind the 602 and repeat the process: 6027 / 991

Moving on to step 7:
991 can be fit into 6027 6 times, resulting in a remainder of 81.
Use 6 as the next digit of our solution. 
Result so far: 5216.0
Deduct 5946 from 6027 and we're left with 81.
Take the next digit (0) from the dividend and append it to 81, then repeat: 810 / 991

Moving on to step 8:
The number 991 fits into 810 0 times, leaving a remainder of 810.
Write down 0 as next digit of the result. 
Result so far: 52160.0
Subtracting 0 from 810 leaves us with 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Going ahead to step 9:
991 goes into 8100 8 times with a remainder of 172.
Write down 8 as next digit of the result. 
Result so far: 52160.8
Subtract 7928 from 8100 to get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

On to step 10:
If we divide 1720 by 991, we get 1 and a remainder of 729.
Put 1 as the next digit of the answer. 
Result so far: 52160.81
The remainder is 729 after subtracting 991 from 1720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7290, and continue the process.

Let's proceed to step 11:
991 goes into 7290 7 times with a remainder of 353.
Use 7 as the next digit of our solution. 
Result so far: 52160.817
The remainder is 353 after subtracting 6937 from 7290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Going ahead to step 12:
The number 991 fits into 3530 3 times, leaving a remainder of 557.
Use 3 as the next digit of our solution. 
Result so far: 52160.8173
The remainder is 557 after subtracting 2973 from 3530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Let's proceed to step 13:
5570 divided by 991 is 5 with a remainder of 615.
The next digit of our result is 5. 
Result so far: 52160.81735
Subtracting 4955 from 5570 leaves us with 615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

Advancing to step 14:
6150 divided by 991 is 6 with a remainder of 204.
Use 6 as the next digit of our solution. 
Result so far: 52160.817356
Deduct 5946 from 6150 and we're left with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Moving on to step 15:
2040 divided by 991 is 2 with a remainder of 58.
Record the quotient 2 as the next digit in the result. 
Result so far: 52160.8173562
Subtracting 1982 from 2040 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 16:
If we divide 580 by 991, we get 0 and a remainder of 580.
The number 0 becomes the next digit in our result. 
Result so far: 52160.8173562
If we subtract 0 from 580, we get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

In conclusion, the division gives 52160.8173562 with a balance of 5.8e-07.