We look at the division of 2172716 by 846 
The aim is to understand the frequency of 846 in 2172716.

On to step 1:
846 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 846

Advancing to step 2:
When dividing 21 by 846, we get 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Take the next digit (7) from the dividend and append it to 21, then repeat: 217 / 846

Going ahead to step 3:
When dividing 217 by 846, we get 0 with a remainder of 217.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 217, we get 217.
Grab the next digit (2) from the dividend, add it to 217, then carry on: 2172 / 846

Let's proceed to step 4:
2172 divided by 846 is 2 with a remainder of 480.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 480 after subtracting 1692 from 2172.
Bring next digit (7) of the dividend behind the 480 and repeat the process: 4807 / 846

On to step 5:
When dividing 4807 by 846, we get 5 with a remainder of 577.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
The remainder is 577 after subtracting 4230 from 4807.
Bring next digit (1) of the dividend behind the 577 and repeat the process: 5771 / 846

Advancing to step 6:
5771 divided by 846 is 6 with a remainder of 695.
The number 6 becomes the next digit in our result. 
Result so far: 256.0
Deduct 5076 from 5771 and we're left with 695.
Fetch the next digit (6) from the dividend, attach it to 695 and continue: 6956 / 846

Step 7:
The number 846 fits into 6956 8 times, leaving a remainder of 188.
Record the quotient 8 as the next digit in the result. 
Result so far: 2568.0
The remainder is 188 after subtracting 6768 from 6956.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Going ahead to step 8:
If we divide 1880 by 846, we get 2 and a remainder of 188.
Write down 2 as next digit of the result. 
Result so far: 2568.2
The remainder is 188 after subtracting 1692 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Moving on to step 9:
When dividing 1880 by 846, we get 2 with a remainder of 188.
Record the quotient 2 as the next digit in the result. 
Result so far: 2568.22
If we take 1692 away from 1880, 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.

Our division results in 2568.22 with a remaining 0.188.