71478078 ÷ 974 
The aim is to understand the frequency of 974 in 71478078.

On to step 1:
The number 974 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 974

Moving on to step 2:
If we divide 71 by 974, we get 0 and a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Fetch the next digit (4) from the dividend, attach it to 71 and continue: 714 / 974

Advancing to step 3:
974 goes into 714 0 times with a remainder of 714.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 714 after subtracting 0 from 714.
Append the next digit (7) from the dividend to 714 and continue with: 7147 / 974

Step 4:
The number 974 fits into 7147 7 times, leaving a remainder of 329.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 6818 from 7147 leaves us with 329.
Include the next digit (8) from the dividend after 329, then repeat: 3298 / 974

Advancing to step 5:
When dividing 3298 by 974, we get 3 with a remainder of 376.
The number 3 becomes the next digit in our result. 
Result so far: 73.0
The remainder is 376 after subtracting 2922 from 3298.
Bring next digit (0) of the dividend behind the 376 and repeat the process: 3760 / 974

On to step 6:
When dividing 3760 by 974, we get 3 with a remainder of 838.
Put 3 as the next digit of the answer. 
Result so far: 733.0
Deduct 2922 from 3760 and we're left with 838.
Bring next digit (7) of the dividend behind the 838 and repeat the process: 8387 / 974

Advancing to step 7:
If we divide 8387 by 974, we get 8 and a remainder of 595.
The next digit of our result is 8. 
Result so far: 7338.0
Deduct 7792 from 8387 and we're left with 595.
Fetch the next digit (8) from the dividend, attach it to 595 and continue: 5958 / 974

On to step 8:
974 can be fit into 5958 6 times, resulting in a remainder of 114.
Write down 6 as next digit of the result. 
Result so far: 73386.0
Subtract 5844 from 5958 to get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Advancing to step 9:
When dividing 1140 by 974, we get 1 with a remainder of 166.
The number 1 becomes the next digit in our result. 
Result so far: 73386.1
Deduct 974 from 1140 and we're left with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Let's proceed to step 10:
1660 divided by 974 is 1 with a remainder of 686.
Put 1 as the next digit of the answer. 
Result so far: 73386.11
The remainder is 686 after subtracting 974 from 1660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6860, and continue the process.

After the division, we end up with 73386.11 and a remainder of 0.686.