We look at the division of 901984 by 12 
We want to divide 901984 by 12.

Step 1:
12 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 12

On to step 2:
The number 12 fits into 90 7 times, leaving a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 84 from 90 to get 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 12

Let's proceed to step 3:
When dividing 61 by 12, we get 5 with a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 75.0
Subtract 60 from 61 to get 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 12

Going ahead to step 4:
19 divided by 12 is 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 751.0
Deduct 12 from 19 and we're left with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 12

Advancing to step 5:
If we divide 78 by 12, we get 6 and a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 7516.0
Subtracting 72 from 78 leaves us with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 12

Let's proceed to step 6:
12 goes into 64 5 times with a remainder of 4.
Record the quotient 5 as the next digit in the result. 
Result so far: 75165.0
The remainder is 4 after subtracting 60 from 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
The number 12 fits into 40 3 times, leaving a remainder of 4.
The next digit of our result is 3. 
Result so far: 75165.3
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 8:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 75165.33
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 75165.33 and a remainder of 0.004.