39462718 ÷ 990 
We want to figure out the number of times 39462718 can be divided by 990.

On to step 1:
990 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 990

Let's proceed to step 2:
990 can be fit into 39 0 times, resulting in a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Grab the next digit (4) from the dividend, add it to 39, then carry on: 394 / 990

Moving on to step 3:
990 can be fit into 394 0 times, resulting in a remainder of 394.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 394 after subtracting 0 from 394.
Fetch the next digit (6) from the dividend, attach it to 394 and continue: 3946 / 990

Advancing to step 4:
The number 990 fits into 3946 3 times, leaving a remainder of 976.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 2970 from 3946, we get 976.
Append the next digit (2) from the dividend to 976 and continue with: 9762 / 990

Let's proceed to step 5:
When dividing 9762 by 990, we get 9 with a remainder of 852.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
If we subtract 8910 from 9762, we get 852.
Fetch the next digit (7) from the dividend, attach it to 852 and continue: 8527 / 990

Moving on to step 6:
990 can be fit into 8527 8 times, resulting in a remainder of 607.
The number 8 becomes the next digit in our result. 
Result so far: 398.0
If we take 7920 away from 8527, we end up with 607.
Bring next digit (1) of the dividend behind the 607 and repeat the process: 6071 / 990

On to step 7:
6071 divided by 990 is 6 with a remainder of 131.
The number 6 becomes the next digit in our result. 
Result so far: 3986.0
If we take 5940 away from 6071, we end up with 131.
Include the next digit (8) from the dividend after 131, then repeat: 1318 / 990

Step 8:
990 goes into 1318 1 times with a remainder of 328.
Record the quotient 1 as the next digit in the result. 
Result so far: 39861.0
Subtract 990 from 1318 to get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Going ahead to step 9:
990 goes into 3280 3 times with a remainder of 310.
The next digit of our result is 3. 
Result so far: 39861.3
If we take 2970 away from 3280, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Moving on to step 10:
3100 divided by 990 is 3 with a remainder of 130.
Put 3 as the next digit of the answer. 
Result so far: 39861.33
Subtract 2970 from 3100 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

The final result is 39861.33 with a remainder of 0.13.