We're dividing 7404585 by 612 
The aim is to understand the frequency of 612 in 7404585.

Going ahead to step 1:
If we divide 7 by 612, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 612

Step 2:
612 can be fit into 74 0 times, resulting in a remainder of 74.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 74 to get 74.
Grab the next digit (0) from the dividend, add it to 74, then carry on: 740 / 612

Going ahead to step 3:
When dividing 740 by 612, we get 1 with a remainder of 128.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 612 from 740 and we're left with 128.
Fetch the next digit (4) from the dividend, attach it to 128 and continue: 1284 / 612

Let's proceed to step 4:
612 goes into 1284 2 times with a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Deduct 1224 from 1284 and we're left with 60.
Bring next digit (5) of the dividend behind the 60 and repeat the process: 605 / 612

On to step 5:
612 goes into 605 0 times with a remainder of 605.
The number 0 becomes the next digit in our result. 
Result so far: 120.0
If we subtract 0 from 605, we get 605.
Bring next digit (8) of the dividend behind the 605 and repeat the process: 6058 / 612

Going ahead to step 6:
The number 612 fits into 6058 9 times, leaving a remainder of 550.
The number 9 becomes the next digit in our result. 
Result so far: 1209.0
Deduct 5508 from 6058 and we're left with 550.
Append the next digit (5) from the dividend to 550 and continue with: 5505 / 612

Going ahead to step 7:
5505 divided by 612 is 8 with a remainder of 609.
The next digit of our result is 8. 
Result so far: 12098.0
If we take 4896 away from 5505, we end up with 609.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6090, and continue the process.

Let's proceed to step 8:
6090 divided by 612 is 9 with a remainder of 582.
The next digit of our result is 9. 
Result so far: 12098.9
If we subtract 5508 from 6090, we get 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Step 9:
612 can be fit into 5820 9 times, resulting in a remainder of 312.
Record the quotient 9 as the next digit in the result. 
Result so far: 12098.99
Deduct 5508 from 5820 and we're left with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

The quotient of the division is 12098.99, and the remainder is 0.312.