We're dividing 21512846 by 174 
The aim is to understand the frequency of 174 in 21512846.

On to step 1:
When dividing 2 by 174, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 174

Advancing to step 2:
The number 174 fits into 21 0 times, leaving a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (5) from the dividend and append it to 21, then repeat: 215 / 174

Advancing to step 3:
The number 174 fits into 215 1 times, leaving a remainder of 41.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 174 from 215 and we're left with 41.
Include the next digit (1) from the dividend after 41, then repeat: 411 / 174

Let's proceed to step 4:
The number 174 fits into 411 2 times, leaving a remainder of 63.
Write down 2 as next digit of the result. 
Result so far: 12.0
The remainder is 63 after subtracting 348 from 411.
Append the next digit (2) from the dividend to 63 and continue with: 632 / 174

Going ahead to step 5:
If we divide 632 by 174, we get 3 and a remainder of 110.
The number 3 becomes the next digit in our result. 
Result so far: 123.0
If we take 522 away from 632, we end up with 110.
Take the next digit (8) from the dividend and append it to 110, then repeat: 1108 / 174

Going ahead to step 6:
174 can be fit into 1108 6 times, resulting in a remainder of 64.
The next digit of our result is 6. 
Result so far: 1236.0
Subtracting 1044 from 1108 leaves us with 64.
Append the next digit (4) from the dividend to 64 and continue with: 644 / 174

Let's proceed to step 7:
The number 174 fits into 644 3 times, leaving a remainder of 122.
The number 3 becomes the next digit in our result. 
Result so far: 12363.0
Deduct 522 from 644 and we're left with 122.
Bring next digit (6) of the dividend behind the 122 and repeat the process: 1226 / 174

Step 8:
The number 174 fits into 1226 7 times, leaving a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 123637.0
Subtracting 1218 from 1226 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
The number 174 fits into 80 0 times, leaving a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 123637.0
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 10:
174 goes into 800 4 times with a remainder of 104.
The number 4 becomes the next digit in our result. 
Result so far: 123637.04
Subtracting 696 from 800 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Going ahead to step 11:
When dividing 1040 by 174, we get 5 with a remainder of 170.
Record the quotient 5 as the next digit in the result. 
Result so far: 123637.045
The remainder is 170 after subtracting 870 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 12:
The number 174 fits into 1700 9 times, leaving a remainder of 134.
Put 9 as the next digit of the answer. 
Result so far: 123637.0459
If we take 1566 away from 1700, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Advancing to step 13:
The number 174 fits into 1340 7 times, leaving a remainder of 122.
Put 7 as the next digit of the answer. 
Result so far: 123637.04597
Subtract 1218 from 1340 to get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Let's proceed to step 14:
The number 174 fits into 1220 7 times, leaving a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 123637.045977
Deduct 1218 from 1220 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

After the division, we end up with 123637.045977 and a remainder of 2e-07.