Let's divide 86619467 by 646
The aim is to understand the frequency of 646 in 86619467.

Step 1:
If we divide 8 by 646, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 646

Moving on to step 2:
If we divide 86 by 646, we get 0 and a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Take the next digit (6) from the dividend and append it to 86, then repeat: 866 / 646

Going ahead to step 3:
When dividing 866 by 646, we get 1 with a remainder of 220.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 646 from 866 leaves us with 220.
Grab the next digit (1) from the dividend, add it to 220, then carry on: 2201 / 646

Step 4:
When dividing 2201 by 646, we get 3 with a remainder of 263.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 1938 away from 2201, we end up with 263.
Include the next digit (9) from the dividend after 263, then repeat: 2639 / 646

On to step 5:
When dividing 2639 by 646, we get 4 with a remainder of 55.
The next digit of our result is 4. 
Result so far: 134.0
Subtracting 2584 from 2639 leaves us with 55.
Include the next digit (4) from the dividend after 55, then repeat: 554 / 646

Moving on to step 6:
If we divide 554 by 646, we get 0 and a remainder of 554.
Record the quotient 0 as the next digit in the result. 
Result so far: 1340.0
If we subtract 0 from 554, we get 554.
Grab the next digit (6) from the dividend, add it to 554, then carry on: 5546 / 646

Moving on to step 7:
646 can be fit into 5546 8 times, resulting in a remainder of 378.
Put 8 as the next digit of the answer. 
Result so far: 13408.0
Subtracting 5168 from 5546 leaves us with 378.
Append the next digit (7) from the dividend to 378 and continue with: 3787 / 646

On to step 8:
The number 646 fits into 3787 5 times, leaving a remainder of 557.
Record the quotient 5 as the next digit in the result. 
Result so far: 134085.0
Subtracting 3230 from 3787 leaves us with 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

On to step 9:
646 goes into 5570 8 times with a remainder of 402.
Put 8 as the next digit of the answer. 
Result so far: 134085.8
Subtracting 5168 from 5570 leaves us with 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Advancing to step 10:
If we divide 4020 by 646, we get 6 and a remainder of 144.
The number 6 becomes the next digit in our result. 
Result so far: 134085.86
Subtract 3876 from 4020 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

On to step 11:
If we divide 1440 by 646, we get 2 and a remainder of 148.
The number 2 becomes the next digit in our result. 
Result so far: 134085.862
The remainder is 148 after subtracting 1292 from 1440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Moving on to step 12:
The number 646 fits into 1480 2 times, leaving a remainder of 188.
Record the quotient 2 as the next digit in the result. 
Result so far: 134085.8622
If we take 1292 away from 1480, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

In conclusion, the division gives 134085.8622 with a balance of 0.00188.