808110 divided by 77 
The aim is to understand the frequency of 77 in 808110.

Step 1:
77 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 77

Moving on to step 2:
If we divide 80 by 77, we get 1 and a remainder of 3.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 3 after subtracting 77 from 80.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 77

Moving on to step 3:
77 can be fit into 38 0 times, resulting in a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 38 to get 38.
Bring next digit (1) of the dividend behind the 38 and repeat the process: 381 / 77

On to step 4:
If we divide 381 by 77, we get 4 and a remainder of 73.
Put 4 as the next digit of the answer. 
Result so far: 104.0
Subtracting 308 from 381 leaves us with 73.
Append the next digit (1) from the dividend to 73 and continue with: 731 / 77

Moving on to step 5:
When dividing 731 by 77, we get 9 with a remainder of 38.
Put 9 as the next digit of the answer. 
Result so far: 1049.0
Deduct 693 from 731 and we're left with 38.
Take the next digit (0) from the dividend and append it to 38, then repeat: 380 / 77

Step 6:
The number 77 fits into 380 4 times, leaving a remainder of 72.
Put 4 as the next digit of the answer. 
Result so far: 10494.0
Deduct 308 from 380 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 7:
When dividing 720 by 77, we get 9 with a remainder of 27.
The number 9 becomes the next digit in our result. 
Result so far: 10494.9
If we take 693 away from 720, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 8:
The number 77 fits into 270 3 times, leaving a remainder of 39.
The number 3 becomes the next digit in our result. 
Result so far: 10494.93
Deduct 231 from 270 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 9:
390 divided by 77 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 10494.935
Subtract 385 from 390 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 10:
When dividing 50 by 77, we get 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 10494.935
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 11:
500 divided by 77 is 6 with a remainder of 38.
Use 6 as the next digit of our solution. 
Result so far: 10494.93506
Subtracting 462 from 500 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 12:
When dividing 380 by 77, we get 4 with a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 10494.935064
If we take 308 away from 380, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 13:
If we divide 720 by 77, we get 9 and a remainder of 27.
Record the quotient 9 as the next digit in the result. 
Result so far: 10494.9350649
If we take 693 away from 720, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 14:
If we divide 270 by 77, we get 3 and a remainder of 39.
Put 3 as the next digit of the answer. 
Result so far: 10494.93506493
The remainder is 39 after subtracting 231 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final outcome is 10494.93506493, with a leftover of 3.9e-08.