Let's divide 66936982 by 90
We want to divide 66936982 by 90.

Going ahead to step 1:
If we divide 6 by 90, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 90

Let's proceed to step 2:
90 can be fit into 66 0 times, resulting in a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Append the next digit (9) from the dividend to 66 and continue with: 669 / 90

Advancing to step 3:
When dividing 669 by 90, we get 7 with a remainder of 39.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 630 from 669 leaves us with 39.
Include the next digit (3) from the dividend after 39, then repeat: 393 / 90

Advancing to step 4:
90 can be fit into 393 4 times, resulting in a remainder of 33.
The number 4 becomes the next digit in our result. 
Result so far: 74.0
If we subtract 360 from 393, we get 33.
Take the next digit (6) from the dividend and append it to 33, then repeat: 336 / 90

Advancing to step 5:
336 divided by 90 is 3 with a remainder of 66.
Record the quotient 3 as the next digit in the result. 
Result so far: 743.0
If we take 270 away from 336, we end up with 66.
Include the next digit (9) from the dividend after 66, then repeat: 669 / 90

Step 6:
The number 90 fits into 669 7 times, leaving a remainder of 39.
The number 7 becomes the next digit in our result. 
Result so far: 7437.0
The remainder is 39 after subtracting 630 from 669.
Fetch the next digit (8) from the dividend, attach it to 39 and continue: 398 / 90

Let's proceed to step 7:
When dividing 398 by 90, we get 4 with a remainder of 38.
The number 4 becomes the next digit in our result. 
Result so far: 74374.0
If we subtract 360 from 398, we get 38.
Take the next digit (2) from the dividend and append it to 38, then repeat: 382 / 90

Advancing to step 8:
90 goes into 382 4 times with a remainder of 22.
The next digit of our result is 4. 
Result so far: 743744.0
If we subtract 360 from 382, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 9:
If we divide 220 by 90, we get 2 and a remainder of 40.
The next digit of our result is 2. 
Result so far: 743744.2
Deduct 180 from 220 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
The number 90 fits into 400 4 times, leaving a remainder of 40.
Write down 4 as next digit of the result. 
Result so far: 743744.24
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 11:
When dividing 400 by 90, we get 4 with a remainder of 40.
The next digit of our result is 4. 
Result so far: 743744.244
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 743744.244 and a remainder of 0.004.