We look at the division of 303972 by 74 
The aim is to understand the frequency of 74 in 303972.

Let's proceed to step 1:
When dividing 3 by 74, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 74

On to step 2:
If we divide 30 by 74, we get 0 and a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 30 after subtracting 0 from 30.
Bring next digit (3) of the dividend behind the 30 and repeat the process: 303 / 74

Let's proceed to step 3:
303 divided by 74 is 4 with a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 296 away from 303, we end up with 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 74

Advancing to step 4:
When dividing 79 by 74, we get 1 with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
Subtract 74 from 79 to get 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 74

On to step 5:
57 divided by 74 is 0 with a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 410.0
Subtract 0 from 57 to get 57.
Append the next digit (2) from the dividend to 57 and continue with: 572 / 74

Step 6:
74 can be fit into 572 7 times, resulting in a remainder of 54.
Write down 7 as next digit of the result. 
Result so far: 4107.0
Deduct 518 from 572 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 7:
If we divide 540 by 74, we get 7 and a remainder of 22.
Put 7 as the next digit of the answer. 
Result so far: 4107.7
If we subtract 518 from 540, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 8:
74 goes into 220 2 times with a remainder of 72.
Record the quotient 2 as the next digit in the result. 
Result so far: 4107.72
Subtracting 148 from 220 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 9:
If we divide 720 by 74, we get 9 and a remainder of 54.
Put 9 as the next digit of the answer. 
Result so far: 4107.729
Subtract 666 from 720 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 10:
When dividing 540 by 74, we get 7 with a remainder of 22.
Write down 7 as next digit of the result. 
Result so far: 4107.7297
The remainder is 22 after subtracting 518 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 11:
When dividing 220 by 74, we get 2 with a remainder of 72.
Record the quotient 2 as the next digit in the result. 
Result so far: 4107.72972
The remainder is 72 after subtracting 148 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 12:
When dividing 720 by 74, we get 9 with a remainder of 54.
Use 9 as the next digit of our solution. 
Result so far: 4107.729729
If we subtract 666 from 720, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 13:
When dividing 540 by 74, we get 7 with a remainder of 22.
The next digit of our result is 7. 
Result so far: 4107.7297297
If we subtract 518 from 540, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 14:
74 can be fit into 220 2 times, resulting in a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 4107.72972972
If we take 148 away from 220, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The quotient of the division is 4107.72972972, and the remainder is 7.2e-08.