We're dividing 943410 by 77 
The aim is to understand the frequency of 77 in 943410.

Advancing to step 1:
If we divide 9 by 77, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (4) of the dividend behind the 9 and repeat the process: 94 / 77

Let's proceed to step 2:
77 goes into 94 1 times with a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 77 from 94 to get 17.
Append the next digit (3) from the dividend to 17 and continue with: 173 / 77

Going ahead to step 3:
When dividing 173 by 77, we get 2 with a remainder of 19.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 19 after subtracting 154 from 173.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 77

On to step 4:
If we divide 194 by 77, we get 2 and a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 122.0
If we take 154 away from 194, we end up with 40.
Take the next digit (1) from the dividend and append it to 40, then repeat: 401 / 77

Step 5:
77 can be fit into 401 5 times, resulting in a remainder of 16.
The number 5 becomes the next digit in our result. 
Result so far: 1225.0
The remainder is 16 after subtracting 385 from 401.
Grab the next digit (0) from the dividend, add it to 16, then carry on: 160 / 77

Advancing to step 6:
160 divided by 77 is 2 with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 12252.0
The remainder is 6 after subtracting 154 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
77 goes into 60 0 times with a remainder of 60.
The next digit of our result is 0. 
Result so far: 12252.0
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 8:
The number 77 fits into 600 7 times, leaving a remainder of 61.
The number 7 becomes the next digit in our result. 
Result so far: 12252.07
Deduct 539 from 600 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 9:
The number 77 fits into 610 7 times, leaving a remainder of 71.
The next digit of our result is 7. 
Result so far: 12252.077
The remainder is 71 after subtracting 539 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

The quotient of the division is 12252.077, and the remainder is 0.0071.