Let's divide 83770156 by 991
We want to figure out the number of times 83770156 can be divided by 991.

On to step 1:
The number 991 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 991

On to step 2:
83 divided by 991 is 0 with a remainder of 83.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 83 to get 83.
Grab the next digit (7) from the dividend, add it to 83, then carry on: 837 / 991

On to step 3:
837 divided by 991 is 0 with a remainder of 837.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 837 after subtracting 0 from 837.
Append the next digit (7) from the dividend to 837 and continue with: 8377 / 991

Step 4:
If we divide 8377 by 991, we get 8 and a remainder of 449.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 7928 from 8377 to get 449.
Bring next digit (0) of the dividend behind the 449 and repeat the process: 4490 / 991

Let's proceed to step 5:
991 can be fit into 4490 4 times, resulting in a remainder of 526.
Put 4 as the next digit of the answer. 
Result so far: 84.0
Subtract 3964 from 4490 to get 526.
Bring next digit (1) of the dividend behind the 526 and repeat the process: 5261 / 991

Advancing to step 6:
5261 divided by 991 is 5 with a remainder of 306.
Record the quotient 5 as the next digit in the result. 
Result so far: 845.0
If we take 4955 away from 5261, we end up with 306.
Include the next digit (5) from the dividend after 306, then repeat: 3065 / 991

Advancing to step 7:
When dividing 3065 by 991, we get 3 with a remainder of 92.
Use 3 as the next digit of our solution. 
Result so far: 8453.0
Subtract 2973 from 3065 to get 92.
Append the next digit (6) from the dividend to 92 and continue with: 926 / 991

Moving on to step 8:
The number 991 fits into 926 0 times, leaving a remainder of 926.
Put 0 as the next digit of the answer. 
Result so far: 84530.0
If we take 0 away from 926, we end up with 926.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9260, and continue the process.

Advancing to step 9:
9260 divided by 991 is 9 with a remainder of 341.
The next digit of our result is 9. 
Result so far: 84530.9
If we subtract 8919 from 9260, we get 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Moving on to step 10:
If we divide 3410 by 991, we get 3 and a remainder of 437.
Write down 3 as next digit of the result. 
Result so far: 84530.93
If we subtract 2973 from 3410, we get 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Going ahead to step 11:
The number 991 fits into 4370 4 times, leaving a remainder of 406.
Use 4 as the next digit of our solution. 
Result so far: 84530.934
Subtract 3964 from 4370 to get 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

On to step 12:
If we divide 4060 by 991, we get 4 and a remainder of 96.
Put 4 as the next digit of the answer. 
Result so far: 84530.9344
Subtract 3964 from 4060 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Our division results in 84530.9344 with a remaining 0.00096.