83731964 divided by 990 
We want to figure out the number of times 83731964 can be divided by 990.

Let's proceed to step 1:
If we divide 8 by 990, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 990

Let's proceed to step 2:
83 divided by 990 is 0 with a remainder of 83.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Include the next digit (7) from the dividend after 83, then repeat: 837 / 990

Going ahead to step 3:
When dividing 837 by 990, we get 0 with a remainder of 837.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 837 leaves us with 837.
Include the next digit (3) from the dividend after 837, then repeat: 8373 / 990

Let's proceed to step 4:
When dividing 8373 by 990, we get 8 with a remainder of 453.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 7920 from 8373 to get 453.
Grab the next digit (1) from the dividend, add it to 453, then carry on: 4531 / 990

Going ahead to step 5:
990 can be fit into 4531 4 times, resulting in a remainder of 571.
Write down 4 as next digit of the result. 
Result so far: 84.0
If we take 3960 away from 4531, we end up with 571.
Take the next digit (9) from the dividend and append it to 571, then repeat: 5719 / 990

Moving on to step 6:
990 goes into 5719 5 times with a remainder of 769.
Record the quotient 5 as the next digit in the result. 
Result so far: 845.0
Subtracting 4950 from 5719 leaves us with 769.
Take the next digit (6) from the dividend and append it to 769, then repeat: 7696 / 990

Step 7:
7696 divided by 990 is 7 with a remainder of 766.
The number 7 becomes the next digit in our result. 
Result so far: 8457.0
Subtracting 6930 from 7696 leaves us with 766.
Fetch the next digit (4) from the dividend, attach it to 766 and continue: 7664 / 990

On to step 8:
990 can be fit into 7664 7 times, resulting in a remainder of 734.
The next digit of our result is 7. 
Result so far: 84577.0
Deduct 6930 from 7664 and we're left with 734.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7340, and continue the process.

On to step 9:
990 can be fit into 7340 7 times, resulting in a remainder of 410.
The next digit of our result is 7. 
Result so far: 84577.7
If we take 6930 away from 7340, we end up with 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 10:
If we divide 4100 by 990, we get 4 and a remainder of 140.
The number 4 becomes the next digit in our result. 
Result so far: 84577.74
Subtract 3960 from 4100 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 11:
990 can be fit into 1400 1 times, resulting in a remainder of 410.
The next digit of our result is 1. 
Result so far: 84577.741
If we take 990 away from 1400, we end up with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Moving on to step 12:
990 can be fit into 4100 4 times, resulting in a remainder of 140.
Write down 4 as next digit of the result. 
Result so far: 84577.7414
Deduct 3960 from 4100 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 13:
If we divide 1400 by 990, we get 1 and a remainder of 410.
The number 1 becomes the next digit in our result. 
Result so far: 84577.74141
Deduct 990 from 1400 and we're left with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Moving on to step 14:
The number 990 fits into 4100 4 times, leaving a remainder of 140.
The next digit of our result is 4. 
Result so far: 84577.741414
If we subtract 3960 from 4100, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 15:
1400 divided by 990 is 1 with a remainder of 410.
The next digit of our result is 1. 
Result so far: 84577.7414141
Deduct 990 from 1400 and we're left with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Step 16:
4100 divided by 990 is 4 with a remainder of 140.
Put 4 as the next digit of the answer. 
Result so far: 84577.74141414
If we take 3960 away from 4100, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

The final outcome is 84577.74141414, with a leftover of 1.4e-07.