43748 divided by 77 
The aim is to understand the frequency of 77 in 43748.

Advancing to step 1:
If we divide 4 by 77, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 77

On to step 2:
77 can be fit into 43 0 times, resulting in a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Fetch the next digit (7) from the dividend, attach it to 43 and continue: 437 / 77

Step 3:
77 goes into 437 5 times with a remainder of 52.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we subtract 385 from 437, we get 52.
Take the next digit (4) from the dividend and append it to 52, then repeat: 524 / 77

On to step 4:
77 can be fit into 524 6 times, resulting in a remainder of 62.
Record the quotient 6 as the next digit in the result. 
Result so far: 56.0
Subtracting 462 from 524 leaves us with 62.
Include the next digit (8) from the dividend after 62, then repeat: 628 / 77

Step 5:
When dividing 628 by 77, we get 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 568.0
Deduct 616 from 628 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 6:
77 can be fit into 120 1 times, resulting in a remainder of 43.
Use 1 as the next digit of our solution. 
Result so far: 568.1
Subtracting 77 from 120 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 7:
When dividing 430 by 77, we get 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 568.15
Deduct 385 from 430 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 8:
When dividing 450 by 77, we get 5 with a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 568.155
If we take 385 away from 450, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final result is 568.155 with a remainder of 0.0065.