17235997 ÷ 138 
The aim is to understand the frequency of 138 in 17235997.

Going ahead to step 1:
The number 138 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 138

On to step 2:
The number 138 fits into 17 0 times, leaving a remainder of 17.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 138

Moving on to step 3:
138 can be fit into 172 1 times, resulting in a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 138 from 172 to get 34.
Grab the next digit (3) from the dividend, add it to 34, then carry on: 343 / 138

Moving on to step 4:
138 can be fit into 343 2 times, resulting in a remainder of 67.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Deduct 276 from 343 and we're left with 67.
Take the next digit (5) from the dividend and append it to 67, then repeat: 675 / 138

Moving on to step 5:
138 goes into 675 4 times with a remainder of 123.
The next digit of our result is 4. 
Result so far: 124.0
Subtracting 552 from 675 leaves us with 123.
Grab the next digit (9) from the dividend, add it to 123, then carry on: 1239 / 138

Going ahead to step 6:
When dividing 1239 by 138, we get 8 with a remainder of 135.
Write down 8 as next digit of the result. 
Result so far: 1248.0
If we take 1104 away from 1239, we end up with 135.
Grab the next digit (9) from the dividend, add it to 135, then carry on: 1359 / 138

Advancing to step 7:
If we divide 1359 by 138, we get 9 and a remainder of 117.
The number 9 becomes the next digit in our result. 
Result so far: 12489.0
Deduct 1242 from 1359 and we're left with 117.
Take the next digit (7) from the dividend and append it to 117, then repeat: 1177 / 138

Advancing to step 8:
138 can be fit into 1177 8 times, resulting in a remainder of 73.
The number 8 becomes the next digit in our result. 
Result so far: 124898.0
Deduct 1104 from 1177 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 9:
138 can be fit into 730 5 times, resulting in a remainder of 40.
The next digit of our result is 5. 
Result so far: 124898.5
Subtract 690 from 730 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
If we divide 400 by 138, we get 2 and a remainder of 124.
Write down 2 as next digit of the result. 
Result so far: 124898.52
If we take 276 away from 400, we end up with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Let's proceed to step 11:
The number 138 fits into 1240 8 times, leaving a remainder of 136.
Write down 8 as next digit of the result. 
Result so far: 124898.528
If we subtract 1104 from 1240, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 12:
1360 divided by 138 is 9 with a remainder of 118.
Write down 9 as next digit of the result. 
Result so far: 124898.5289
If we take 1242 away from 1360, we end up with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Let's proceed to step 13:
1180 divided by 138 is 8 with a remainder of 76.
The number 8 becomes the next digit in our result. 
Result so far: 124898.52898
Subtracting 1104 from 1180 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 14:
138 goes into 760 5 times with a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 124898.528985
Subtract 690 from 760 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 15:
The number 138 fits into 700 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 124898.5289855
If we take 690 away from 700, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 124898.5289855 with a remaining 1e-07.