We divide 645285 by 77
The aim is to understand the frequency of 77 in 645285.

Advancing to step 1:
77 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 77

Step 2:
When dividing 64 by 77, we get 0 with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Append the next digit (5) from the dividend to 64 and continue with: 645 / 77

Moving on to step 3:
When dividing 645 by 77, we get 8 with a remainder of 29.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 616 from 645 leaves us with 29.
Bring next digit (2) of the dividend behind the 29 and repeat the process: 292 / 77

On to step 4:
If we divide 292 by 77, we get 3 and a remainder of 61.
Use 3 as the next digit of our solution. 
Result so far: 83.0
If we take 231 away from 292, we end up with 61.
Append the next digit (8) from the dividend to 61 and continue with: 618 / 77

Advancing to step 5:
77 goes into 618 8 times with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 838.0
Subtracting 616 from 618 leaves us with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 77

Going ahead to step 6:
The number 77 fits into 25 0 times, leaving a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 8380.0
Subtracting 0 from 25 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 7:
If we divide 250 by 77, we get 3 and a remainder of 19.
Use 3 as the next digit of our solution. 
Result so far: 8380.3
If we take 231 away from 250, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 8:
190 divided by 77 is 2 with a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 8380.32
Subtract 154 from 190 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 9:
When dividing 360 by 77, we get 4 with a remainder of 52.
The next digit of our result is 4. 
Result so far: 8380.324
Deduct 308 from 360 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 10:
When dividing 520 by 77, we get 6 with a remainder of 58.
The next digit of our result is 6. 
Result so far: 8380.3246
Subtract 462 from 520 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 11:
77 goes into 580 7 times with a remainder of 41.
The number 7 becomes the next digit in our result. 
Result so far: 8380.32467
If we take 539 away from 580, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 12:
410 divided by 77 is 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 8380.324675
Subtract 385 from 410 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 13:
77 can be fit into 250 3 times, resulting in a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 8380.3246753
If we take 231 away from 250, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 14:
The number 77 fits into 190 2 times, leaving a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 8380.32467532
If we take 154 away from 190, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final outcome is 8380.32467532, with a leftover of 3.6e-08.