221225 ÷ 37 
The aim is to understand the frequency of 37 in 221225.

Going ahead to step 1:
2 divided by 37 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 37

Let's proceed to step 2:
37 goes into 22 0 times with a remainder of 22.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 22 and we're left with 22.
Grab the next digit (1) from the dividend, add it to 22, then carry on: 221 / 37

Going ahead to step 3:
When dividing 221 by 37, we get 5 with a remainder of 36.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 185 from 221 leaves us with 36.
Take the next digit (2) from the dividend and append it to 36, then repeat: 362 / 37

Let's proceed to step 4:
If we divide 362 by 37, we get 9 and a remainder of 29.
Write down 9 as next digit of the result. 
Result so far: 59.0
The remainder is 29 after subtracting 333 from 362.
Bring next digit (2) of the dividend behind the 29 and repeat the process: 292 / 37

Let's proceed to step 5:
37 can be fit into 292 7 times, resulting in a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 597.0
If we subtract 259 from 292, we get 33.
Grab the next digit (5) from the dividend, add it to 33, then carry on: 335 / 37

Let's proceed to step 6:
37 goes into 335 9 times with a remainder of 2.
The next digit of our result is 9. 
Result so far: 5979.0
The remainder is 2 after subtracting 333 from 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
If we divide 20 by 37, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 5979.0
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 8:
200 divided by 37 is 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 5979.05
If we subtract 185 from 200, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
When dividing 150 by 37, we get 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 5979.054
Deduct 148 from 150 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.

On to step 10:
When dividing 20 by 37, we get 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 5979.054
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
When dividing 200 by 37, we get 5 with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 5979.05405
Deduct 185 from 200 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 12:
150 divided by 37 is 4 with a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 5979.054054
Deduct 148 from 150 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.

Going ahead to step 13:
20 divided by 37 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 5979.054054
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 14:
When dividing 200 by 37, we get 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 5979.05405405
If we take 185 away from 200, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Our division results in 5979.05405405 with a remaining 1.5e-08.