We look at the division of 947838 by 77 
The aim is to understand the frequency of 77 in 947838.

On to step 1:
77 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 77

Let's proceed to step 2:
77 goes into 94 1 times with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 77 from 94 to get 17.
Bring next digit (7) of the dividend behind the 17 and repeat the process: 177 / 77

On to step 3:
The number 77 fits into 177 2 times, leaving a remainder of 23.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtracting 154 from 177 leaves us with 23.
Grab the next digit (8) from the dividend, add it to 23, then carry on: 238 / 77

Let's proceed to step 4:
238 divided by 77 is 3 with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 123.0
Subtract 231 from 238 to get 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 77

Step 5:
When dividing 73 by 77, we get 0 with a remainder of 73.
The number 0 becomes the next digit in our result. 
Result so far: 1230.0
Subtracting 0 from 73 leaves us with 73.
Include the next digit (8) from the dividend after 73, then repeat: 738 / 77

Going ahead to step 6:
77 goes into 738 9 times with a remainder of 45.
The next digit of our result is 9. 
Result so far: 12309.0
If we subtract 693 from 738, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 7:
77 can be fit into 450 5 times, resulting in a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 12309.5
Subtract 385 from 450 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 8:
77 can be fit into 650 8 times, resulting in a remainder of 34.
Use 8 as the next digit of our solution. 
Result so far: 12309.58
Subtracting 616 from 650 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 9:
If we divide 340 by 77, we get 4 and a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 12309.584
Subtract 308 from 340 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 10:
77 goes into 320 4 times with a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 12309.5844
Deduct 308 from 320 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.

In conclusion, the division gives 12309.5844 with a balance of 0.00012.