We look at the division of 873523 by 37 
The aim is to understand the frequency of 37 in 873523.

Moving on to step 1:
37 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 37

On to step 2:
When dividing 87 by 37, we get 2 with a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 74 from 87, we get 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 37

Moving on to step 3:
If we divide 133 by 37, we get 3 and a remainder of 22.
Use 3 as the next digit of our solution. 
Result so far: 23.0
The remainder is 22 after subtracting 111 from 133.
Append the next digit (5) from the dividend to 22 and continue with: 225 / 37

Going ahead to step 4:
37 goes into 225 6 times with a remainder of 3.
The next digit of our result is 6. 
Result so far: 236.0
The remainder is 3 after subtracting 222 from 225.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 37

Moving on to step 5:
32 divided by 37 is 0 with a remainder of 32.
The number 0 becomes the next digit in our result. 
Result so far: 2360.0
If we take 0 away from 32, we end up with 32.
Bring next digit (3) of the dividend behind the 32 and repeat the process: 323 / 37

Moving on to step 6:
37 can be fit into 323 8 times, resulting in a remainder of 27.
Put 8 as the next digit of the answer. 
Result so far: 23608.0
The remainder is 27 after subtracting 296 from 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 7:
270 divided by 37 is 7 with a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 23608.7
Subtracting 259 from 270 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 8:
The number 37 fits into 110 2 times, leaving a remainder of 36.
The next digit of our result is 2. 
Result so far: 23608.72
Subtract 74 from 110 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 9:
37 can be fit into 360 9 times, resulting in a remainder of 27.
Write down 9 as next digit of the result. 
Result so far: 23608.729
If we subtract 333 from 360, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 10:
When dividing 270 by 37, we get 7 with a remainder of 11.
The next digit of our result is 7. 
Result so far: 23608.7297
Subtract 259 from 270 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 11:
If we divide 110 by 37, we get 2 and a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 23608.72972
If we take 74 away from 110, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 12:
360 divided by 37 is 9 with a remainder of 27.
The number 9 becomes the next digit in our result. 
Result so far: 23608.729729
Subtracting 333 from 360 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 13:
270 divided by 37 is 7 with a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 23608.7297297
The remainder is 11 after subtracting 259 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 14:
When dividing 110 by 37, we get 2 with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 23608.72972972
The remainder is 36 after subtracting 74 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Our division results in 23608.72972972 with a remaining 3.6e-08.