176694 divided by 21 
The aim is to understand the frequency of 21 in 176694.

On to step 1:
When dividing 1 by 21, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 21

On to step 2:
If we divide 17 by 21, we get 0 and a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 17 leaves us with 17.
Fetch the next digit (6) from the dividend, attach it to 17 and continue: 176 / 21

Moving on to step 3:
176 divided by 21 is 8 with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 168 from 176, we get 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 21

Step 4:
If we divide 86 by 21, we get 4 and a remainder of 2.
The next digit of our result is 4. 
Result so far: 84.0
If we subtract 84 from 86, we get 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 21

Going ahead to step 5:
21 goes into 29 1 times with a remainder of 8.
The next digit of our result is 1. 
Result so far: 841.0
The remainder is 8 after subtracting 21 from 29.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 21

Step 6:
21 goes into 84 4 times with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 8414.0
If we take 84 away from 84, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
The number 21 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8414.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
When dividing 0 by 21, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 8414.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 8414.0, and the remainder is 0.0.