We look at the division of 941987 by 77 
The aim is to understand the frequency of 77 in 941987.

Going ahead to step 1:
When dividing 9 by 77, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 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
If we subtract 77 from 94, we get 17.
Include the next digit (1) from the dividend after 17, then repeat: 171 / 77

Step 3:
77 can be fit into 171 2 times, resulting in a remainder of 17.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 154 away from 171, we end up with 17.
Grab the next digit (9) from the dividend, add it to 17, then carry on: 179 / 77

Let's proceed to step 4:
77 goes into 179 2 times with a remainder of 25.
Use 2 as the next digit of our solution. 
Result so far: 122.0
Subtracting 154 from 179 leaves us with 25.
Bring next digit (8) of the dividend behind the 25 and repeat the process: 258 / 77

Step 5:
When dividing 258 by 77, we get 3 with a remainder of 27.
Write down 3 as next digit of the result. 
Result so far: 1223.0
If we subtract 231 from 258, we get 27.
Fetch the next digit (7) from the dividend, attach it to 27 and continue: 277 / 77

On to step 6:
77 goes into 277 3 times with a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 12233.0
If we take 231 away from 277, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 7:
The number 77 fits into 460 5 times, leaving a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 12233.5
Deduct 385 from 460 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 8:
The number 77 fits into 750 9 times, leaving a remainder of 57.
The number 9 becomes the next digit in our result. 
Result so far: 12233.59
If we take 693 away from 750, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 9:
The number 77 fits into 570 7 times, leaving a remainder of 31.
Put 7 as the next digit of the answer. 
Result so far: 12233.597
The remainder is 31 after subtracting 539 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 10:
The number 77 fits into 310 4 times, leaving a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 12233.5974
The remainder is 2 after subtracting 308 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 11:
20 divided by 77 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 12233.5974
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 12:
The number 77 fits into 200 2 times, leaving a remainder of 46.
Write down 2 as next digit of the result. 
Result so far: 12233.597402
Deduct 154 from 200 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 13:
77 goes into 460 5 times with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 12233.5974025
Deduct 385 from 460 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 14:
77 can be fit into 750 9 times, resulting in a remainder of 57.
Put 9 as the next digit of the answer. 
Result so far: 12233.59740259
Subtracting 693 from 750 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The final result is 12233.59740259 with a remainder of 5.7e-08.