We look at the division of 8062777 by 646 
The aim is to understand the frequency of 646 in 8062777.

Let's proceed to step 1:
646 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 646

Step 2:
If we divide 80 by 646, we get 0 and a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Grab the next digit (6) from the dividend, add it to 80, then carry on: 806 / 646

Advancing to step 3:
When dividing 806 by 646, we get 1 with a remainder of 160.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 646 from 806, we get 160.
Append the next digit (2) from the dividend to 160 and continue with: 1602 / 646

Step 4:
The number 646 fits into 1602 2 times, leaving a remainder of 310.
Write down 2 as next digit of the result. 
Result so far: 12.0
The remainder is 310 after subtracting 1292 from 1602.
Fetch the next digit (7) from the dividend, attach it to 310 and continue: 3107 / 646

Step 5:
3107 divided by 646 is 4 with a remainder of 523.
Record the quotient 4 as the next digit in the result. 
Result so far: 124.0
Subtracting 2584 from 3107 leaves us with 523.
Append the next digit (7) from the dividend to 523 and continue with: 5237 / 646

Moving on to step 6:
When dividing 5237 by 646, we get 8 with a remainder of 69.
The number 8 becomes the next digit in our result. 
Result so far: 1248.0
Deduct 5168 from 5237 and we're left with 69.
Bring next digit (7) of the dividend behind the 69 and repeat the process: 697 / 646

Advancing to step 7:
697 divided by 646 is 1 with a remainder of 51.
Put 1 as the next digit of the answer. 
Result so far: 12481.0
If we take 646 away from 697, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 8:
646 can be fit into 510 0 times, resulting in a remainder of 510.
Use 0 as the next digit of our solution. 
Result so far: 12481.0
Subtracting 0 from 510 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Going ahead to step 9:
If we divide 5100 by 646, we get 7 and a remainder of 578.
Put 7 as the next digit of the answer. 
Result so far: 12481.07
The remainder is 578 after subtracting 4522 from 5100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Step 10:
If we divide 5780 by 646, we get 8 and a remainder of 612.
The number 8 becomes the next digit in our result. 
Result so far: 12481.078
Deduct 5168 from 5780 and we're left with 612.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6120, and continue the process.

Going ahead to step 11:
When dividing 6120 by 646, we get 9 with a remainder of 306.
The number 9 becomes the next digit in our result. 
Result so far: 12481.0789
Subtract 5814 from 6120 to get 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Let's proceed to step 12:
646 goes into 3060 4 times with a remainder of 476.
Record the quotient 4 as the next digit in the result. 
Result so far: 12481.07894
If we subtract 2584 from 3060, we get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Advancing to step 13:
The number 646 fits into 4760 7 times, leaving a remainder of 238.
The number 7 becomes the next digit in our result. 
Result so far: 12481.078947
Subtract 4522 from 4760 to get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 14:
If we divide 2380 by 646, we get 3 and a remainder of 442.
Put 3 as the next digit of the answer. 
Result so far: 12481.0789473
If we subtract 1938 from 2380, we get 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

On to step 15:
646 goes into 4420 6 times with a remainder of 544.
The next digit of our result is 6. 
Result so far: 12481.07894736
If we subtract 3876 from 4420, we get 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Our division results in 12481.07894736 with a remaining 5.44e-07.