Let's divide 646054 by 861
The aim is to understand the frequency of 861 in 646054.

Going ahead to step 1:
If we divide 6 by 861, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 861

Advancing to step 2:
When dividing 64 by 861, we get 0 with a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Take the next digit (6) from the dividend and append it to 64, then repeat: 646 / 861

Advancing to step 3:
646 divided by 861 is 0 with a remainder of 646.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 646, we get 646.
Include the next digit (0) from the dividend after 646, then repeat: 6460 / 861

Moving on to step 4:
6460 divided by 861 is 7 with a remainder of 433.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 433 after subtracting 6027 from 6460.
Take the next digit (5) from the dividend and append it to 433, then repeat: 4335 / 861

Going ahead to step 5:
861 can be fit into 4335 5 times, resulting in a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 75.0
Subtracting 4305 from 4335 leaves us with 30.
Take the next digit (4) from the dividend and append it to 30, then repeat: 304 / 861

On to step 6:
When dividing 304 by 861, we get 0 with a remainder of 304.
Record the quotient 0 as the next digit in the result. 
Result so far: 750.0
The remainder is 304 after subtracting 0 from 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Step 7:
If we divide 3040 by 861, we get 3 and a remainder of 457.
Put 3 as the next digit of the answer. 
Result so far: 750.3
Deduct 2583 from 3040 and we're left with 457.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4570, and continue the process.

On to step 8:
When dividing 4570 by 861, we get 5 with a remainder of 265.
Write down 5 as next digit of the result. 
Result so far: 750.35
The remainder is 265 after subtracting 4305 from 4570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Let's proceed to step 9:
2650 divided by 861 is 3 with a remainder of 67.
Record the quotient 3 as the next digit in the result. 
Result so far: 750.353
If we subtract 2583 from 2650, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 10:
861 goes into 670 0 times with a remainder of 670.
Write down 0 as next digit of the result. 
Result so far: 750.353
Deduct 0 from 670 and we're left with 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Moving on to step 11:
If we divide 6700 by 861, we get 7 and a remainder of 673.
Put 7 as the next digit of the answer. 
Result so far: 750.35307
Deduct 6027 from 6700 and we're left with 673.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6730, and continue the process.

Step 12:
861 can be fit into 6730 7 times, resulting in a remainder of 703.
Record the quotient 7 as the next digit in the result. 
Result so far: 750.353077
The remainder is 703 after subtracting 6027 from 6730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7030, and continue the process.

After the division, we end up with 750.353077 and a remainder of 7.03e-05.