846696 ÷ 51 
The aim is to understand the frequency of 51 in 846696.

Step 1:
8 divided by 51 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 51

Let's proceed to step 2:
The number 51 fits into 84 1 times, leaving a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 51 from 84 and we're left with 33.
Append the next digit (6) from the dividend to 33 and continue with: 336 / 51

Moving on to step 3:
The number 51 fits into 336 6 times, leaving a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we subtract 306 from 336, we get 30.
Include the next digit (6) from the dividend after 30, then repeat: 306 / 51

Advancing to step 4:
51 goes into 306 6 times with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 166.0
If we subtract 306 from 306, we get 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 51

Let's proceed to step 5:
When dividing 9 by 51, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 1660.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (6) from the dividend, add it to 9, then carry on: 96 / 51

Moving on to step 6:
51 can be fit into 96 1 times, resulting in a remainder of 45.
Record the quotient 1 as the next digit in the result. 
Result so far: 16601.0
The remainder is 45 after subtracting 51 from 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 7:
51 goes into 450 8 times with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 16601.8
The remainder is 42 after subtracting 408 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 8:
When dividing 420 by 51, we get 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 16601.88
The remainder is 12 after subtracting 408 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 16601.88, and the remainder is 0.012.