We're dividing 39987122 by 928 
We want to figure out the number of times 39987122 can be divided by 928.

On to step 1:
When dividing 3 by 928, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 928

Moving on to step 2:
If we divide 39 by 928, we get 0 and a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Fetch the next digit (9) from the dividend, attach it to 39 and continue: 399 / 928

Moving on to step 3:
The number 928 fits into 399 0 times, leaving a remainder of 399.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 399 after subtracting 0 from 399.
Include the next digit (8) from the dividend after 399, then repeat: 3998 / 928

Step 4:
3998 divided by 928 is 4 with a remainder of 286.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 3712 from 3998 and we're left with 286.
Fetch the next digit (7) from the dividend, attach it to 286 and continue: 2867 / 928

Let's proceed to step 5:
When dividing 2867 by 928, we get 3 with a remainder of 83.
Use 3 as the next digit of our solution. 
Result so far: 43.0
The remainder is 83 after subtracting 2784 from 2867.
Bring next digit (1) of the dividend behind the 83 and repeat the process: 831 / 928

Let's proceed to step 6:
If we divide 831 by 928, we get 0 and a remainder of 831.
The next digit of our result is 0. 
Result so far: 430.0
If we take 0 away from 831, we end up with 831.
Fetch the next digit (2) from the dividend, attach it to 831 and continue: 8312 / 928

On to step 7:
8312 divided by 928 is 8 with a remainder of 888.
Write down 8 as next digit of the result. 
Result so far: 4308.0
Subtract 7424 from 8312 to get 888.
Include the next digit (2) from the dividend after 888, then repeat: 8882 / 928

Moving on to step 8:
The number 928 fits into 8882 9 times, leaving a remainder of 530.
Put 9 as the next digit of the answer. 
Result so far: 43089.0
If we subtract 8352 from 8882, we get 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Going ahead to step 9:
928 goes into 5300 5 times with a remainder of 660.
Put 5 as the next digit of the answer. 
Result so far: 43089.5
Subtract 4640 from 5300 to get 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Going ahead to step 10:
When dividing 6600 by 928, we get 7 with a remainder of 104.
Record the quotient 7 as the next digit in the result. 
Result so far: 43089.57
If we take 6496 away from 6600, we end up with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Step 11:
If we divide 1040 by 928, we get 1 and a remainder of 112.
Put 1 as the next digit of the answer. 
Result so far: 43089.571
Deduct 928 from 1040 and we're left with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Let's proceed to step 12:
When dividing 1120 by 928, we get 1 with a remainder of 192.
The number 1 becomes the next digit in our result. 
Result so far: 43089.5711
The remainder is 192 after subtracting 928 from 1120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

In conclusion, the division gives 43089.5711 with a balance of 0.00192.