901178 divided by 12 
The aim is to understand the frequency of 12 in 901178.

Advancing to step 1:
The number 12 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 12

Advancing to step 2:
90 divided by 12 is 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we take 84 away from 90, we end up with 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 12

Let's proceed to step 3:
12 can be fit into 61 5 times, resulting in a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 75.0
Subtract 60 from 61 to get 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 12

Going ahead to step 4:
12 can be fit into 11 0 times, resulting in a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 750.0
Subtract 0 from 11 to get 11.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 12

Advancing to step 5:
The number 12 fits into 117 9 times, leaving a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 7509.0
The remainder is 9 after subtracting 108 from 117.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 12

Let's proceed to step 6:
12 goes into 98 8 times with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 75098.0
Deduct 96 from 98 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 7:
The number 12 fits into 20 1 times, leaving a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 75098.1
Deduct 12 from 20 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 8:
If we divide 80 by 12, we get 6 and a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 75098.16
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 9:
When dividing 80 by 12, we get 6 with a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 75098.166
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 75098.166, and the remainder is 0.0008.