Let's divide 373589 by 138
The aim is to understand the frequency of 138 in 373589.

Advancing to step 1:
If we divide 3 by 138, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 138

Moving on to step 2:
If we divide 37 by 138, we get 0 and a remainder of 37.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 37, we get 37.
Grab the next digit (3) from the dividend, add it to 37, then carry on: 373 / 138

Let's proceed to step 3:
373 divided by 138 is 2 with a remainder of 97.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 276 from 373, we get 97.
Bring next digit (5) of the dividend behind the 97 and repeat the process: 975 / 138

Let's proceed to step 4:
If we divide 975 by 138, we get 7 and a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 27.0
Subtract 966 from 975 to get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 138

Step 5:
The number 138 fits into 98 0 times, leaving a remainder of 98.
The next digit of our result is 0. 
Result so far: 270.0
If we subtract 0 from 98, we get 98.
Append the next digit (9) from the dividend to 98 and continue with: 989 / 138

Going ahead to step 6:
If we divide 989 by 138, we get 7 and a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 2707.0
If we subtract 966 from 989, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 7:
The number 138 fits into 230 1 times, leaving a remainder of 92.
Write down 1 as next digit of the result. 
Result so far: 2707.1
Deduct 138 from 230 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 8:
138 goes into 920 6 times with a remainder of 92.
Write down 6 as next digit of the result. 
Result so far: 2707.16
If we take 828 away from 920, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 9:
920 divided by 138 is 6 with a remainder of 92.
Write down 6 as next digit of the result. 
Result so far: 2707.166
If we subtract 828 from 920, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Our division results in 2707.166 with a remaining 0.0092.