91452330 divided by 138 
The aim is to understand the frequency of 138 in 91452330.

Step 1:
138 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 138

Step 2:
138 can be fit into 91 0 times, resulting in a remainder of 91.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 91, we end up with 91.
Fetch the next digit (4) from the dividend, attach it to 91 and continue: 914 / 138

Advancing to step 3:
If we divide 914 by 138, we get 6 and a remainder of 86.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we take 828 away from 914, we end up with 86.
Include the next digit (5) from the dividend after 86, then repeat: 865 / 138

Advancing to step 4:
138 can be fit into 865 6 times, resulting in a remainder of 37.
The next digit of our result is 6. 
Result so far: 66.0
If we subtract 828 from 865, we get 37.
Bring next digit (2) of the dividend behind the 37 and repeat the process: 372 / 138

Step 5:
138 goes into 372 2 times with a remainder of 96.
Record the quotient 2 as the next digit in the result. 
Result so far: 662.0
Deduct 276 from 372 and we're left with 96.
Include the next digit (3) from the dividend after 96, then repeat: 963 / 138

Going ahead to step 6:
When dividing 963 by 138, we get 6 with a remainder of 135.
Put 6 as the next digit of the answer. 
Result so far: 6626.0
If we take 828 away from 963, we end up with 135.
Include the next digit (3) from the dividend after 135, then repeat: 1353 / 138

Going ahead to step 7:
If we divide 1353 by 138, we get 9 and a remainder of 111.
The next digit of our result is 9. 
Result so far: 66269.0
If we subtract 1242 from 1353, we get 111.
Bring next digit (0) of the dividend behind the 111 and repeat the process: 1110 / 138

Step 8:
138 can be fit into 1110 8 times, resulting in a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 662698.0
Deduct 1104 from 1110 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 9:
60 divided by 138 is 0 with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 662698.0
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 10:
138 can be fit into 600 4 times, resulting in a remainder of 48.
The next digit of our result is 4. 
Result so far: 662698.04
Deduct 552 from 600 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 11:
When dividing 480 by 138, we get 3 with a remainder of 66.
Put 3 as the next digit of the answer. 
Result so far: 662698.043
The remainder is 66 after subtracting 414 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 12:
138 goes into 660 4 times with a remainder of 108.
The next digit of our result is 4. 
Result so far: 662698.0434
Subtract 552 from 660 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Moving on to step 13:
138 can be fit into 1080 7 times, resulting in a remainder of 114.
The number 7 becomes the next digit in our result. 
Result so far: 662698.04347
If we take 966 away from 1080, we end up with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Moving on to step 14:
When dividing 1140 by 138, we get 8 with a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 662698.043478
Deduct 1104 from 1140 and we're left 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.

Moving on to step 15:
When dividing 360 by 138, we get 2 with a remainder of 84.
Put 2 as the next digit of the answer. 
Result so far: 662698.0434782
Deduct 276 from 360 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 16:
840 divided by 138 is 6 with a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 662698.04347826
If we subtract 828 from 840, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 662698.04347826 and a remainder of 1.2e-08.