We look at the division of 21685195 by 37 
The aim is to understand the frequency of 37 in 21685195.

On to step 1:
2 divided by 37 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 37

Let's proceed to step 2:
37 can be fit into 21 0 times, resulting in a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Take the next digit (6) from the dividend and append it to 21, then repeat: 216 / 37

Moving on to step 3:
216 divided by 37 is 5 with a remainder of 31.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 185 from 216 and we're left with 31.
Bring next digit (8) of the dividend behind the 31 and repeat the process: 318 / 37

Advancing to step 4:
37 goes into 318 8 times with a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 58.0
Subtracting 296 from 318 leaves us with 22.
Append the next digit (5) from the dividend to 22 and continue with: 225 / 37

Moving on to step 5:
37 goes into 225 6 times with a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 586.0
The remainder is 3 after subtracting 222 from 225.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 37

Going ahead to step 6:
37 goes into 31 0 times with a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 5860.0
Subtract 0 from 31 to get 31.
Take the next digit (9) from the dividend and append it to 31, then repeat: 319 / 37

Step 7:
37 can be fit into 319 8 times, resulting in a remainder of 23.
Use 8 as the next digit of our solution. 
Result so far: 58608.0
If we take 296 away from 319, we end up with 23.
Grab the next digit (5) from the dividend, add it to 23, then carry on: 235 / 37

Going ahead to step 8:
When dividing 235 by 37, we get 6 with a remainder of 13.
The next digit of our result is 6. 
Result so far: 586086.0
The remainder is 13 after subtracting 222 from 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 9:
37 can be fit into 130 3 times, resulting in a remainder of 19.
Put 3 as the next digit of the answer. 
Result so far: 586086.3
Deduct 111 from 130 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 10:
190 divided by 37 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 586086.35
Subtracting 185 from 190 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 11:
37 goes into 50 1 times with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 586086.351
Subtract 37 from 50 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 12:
130 divided by 37 is 3 with a remainder of 19.
The next digit of our result is 3. 
Result so far: 586086.3513
Subtracting 111 from 130 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 13:
190 divided by 37 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 586086.35135
If we take 185 away from 190, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 14:
50 divided by 37 is 1 with a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 586086.351351
Subtracting 37 from 50 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 15:
The number 37 fits into 130 3 times, leaving a remainder of 19.
The number 3 becomes the next digit in our result. 
Result so far: 586086.3513513
The remainder is 19 after subtracting 111 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 16:
37 can be fit into 190 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 586086.35135135
Subtracting 185 from 190 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 586086.35135135, and the remainder is 5e-09.