Let's divide 74210 by 77
The aim is to understand the frequency of 77 in 74210.

Advancing to step 1:
When dividing 7 by 77, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 77

On to step 2:
When dividing 74 by 77, we get 0 with a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 74 leaves us with 74.
Include the next digit (2) from the dividend after 74, then repeat: 742 / 77

Moving on to step 3:
When dividing 742 by 77, we get 9 with a remainder of 49.
The next digit of our result is 9. 
Result so far: 9.0
Subtracting 693 from 742 leaves us with 49.
Include the next digit (1) from the dividend after 49, then repeat: 491 / 77

On to step 4:
The number 77 fits into 491 6 times, leaving a remainder of 29.
Put 6 as the next digit of the answer. 
Result so far: 96.0
The remainder is 29 after subtracting 462 from 491.
Bring next digit (0) of the dividend behind the 29 and repeat the process: 290 / 77

Let's proceed to step 5:
The number 77 fits into 290 3 times, leaving a remainder of 59.
Write down 3 as next digit of the result. 
Result so far: 963.0
The remainder is 59 after subtracting 231 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 6:
590 divided by 77 is 7 with a remainder of 51.
Record the quotient 7 as the next digit in the result. 
Result so far: 963.7
If we subtract 539 from 590, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 7:
If we divide 510 by 77, we get 6 and a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 963.76
Deduct 462 from 510 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 8:
77 can be fit into 480 6 times, resulting in a remainder of 18.
The number 6 becomes the next digit in our result. 
Result so far: 963.766
Subtracting 462 from 480 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 963.766 with a remainder of 0.0018.