Let's divide 90335131 by 749
The aim is to understand the frequency of 749 in 90335131.

On to step 1:
749 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 749

Advancing to step 2:
When dividing 90 by 749, we get 0 with a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Include the next digit (3) from the dividend after 90, then repeat: 903 / 749

Going ahead to step 3:
If we divide 903 by 749, we get 1 and a remainder of 154.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 749 away from 903, we end up with 154.
Grab the next digit (3) from the dividend, add it to 154, then carry on: 1543 / 749

Step 4:
If we divide 1543 by 749, we get 2 and a remainder of 45.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 1498 from 1543 to get 45.
Grab the next digit (5) from the dividend, add it to 45, then carry on: 455 / 749

Moving on to step 5:
749 can be fit into 455 0 times, resulting in a remainder of 455.
Put 0 as the next digit of the answer. 
Result so far: 120.0
Subtracting 0 from 455 leaves us with 455.
Include the next digit (1) from the dividend after 455, then repeat: 4551 / 749

Step 6:
The number 749 fits into 4551 6 times, leaving a remainder of 57.
The next digit of our result is 6. 
Result so far: 1206.0
The remainder is 57 after subtracting 4494 from 4551.
Fetch the next digit (3) from the dividend, attach it to 57 and continue: 573 / 749

Going ahead to step 7:
The number 749 fits into 573 0 times, leaving a remainder of 573.
The next digit of our result is 0. 
Result so far: 12060.0
Subtracting 0 from 573 leaves us with 573.
Bring next digit (1) of the dividend behind the 573 and repeat the process: 5731 / 749

Advancing to step 8:
If we divide 5731 by 749, we get 7 and a remainder of 488.
The next digit of our result is 7. 
Result so far: 120607.0
Deduct 5243 from 5731 and we're left with 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Going ahead to step 9:
When dividing 4880 by 749, we get 6 with a remainder of 386.
The number 6 becomes the next digit in our result. 
Result so far: 120607.6
If we subtract 4494 from 4880, we get 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Going ahead to step 10:
749 can be fit into 3860 5 times, resulting in a remainder of 115.
Use 5 as the next digit of our solution. 
Result so far: 120607.65
Deduct 3745 from 3860 and we're left with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Step 11:
749 can be fit into 1150 1 times, resulting in a remainder of 401.
The number 1 becomes the next digit in our result. 
Result so far: 120607.651
Subtract 749 from 1150 to get 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Moving on to step 12:
749 goes into 4010 5 times with a remainder of 265.
Use 5 as the next digit of our solution. 
Result so far: 120607.6515
If we subtract 3745 from 4010, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Going ahead to step 13:
749 can be fit into 2650 3 times, resulting in a remainder of 403.
The number 3 becomes the next digit in our result. 
Result so far: 120607.65153
The remainder is 403 after subtracting 2247 from 2650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

On to step 14:
749 goes into 4030 5 times with a remainder of 285.
Write down 5 as next digit of the result. 
Result so far: 120607.651535
Deduct 3745 from 4030 and we're left with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

On to step 15:
2850 divided by 749 is 3 with a remainder of 603.
Record the quotient 3 as the next digit in the result. 
Result so far: 120607.6515353
Subtracting 2247 from 2850 leaves us with 603.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6030, and continue the process.

Moving on to step 16:
749 can be fit into 6030 8 times, resulting in a remainder of 38.
The number 8 becomes the next digit in our result. 
Result so far: 120607.65153538
Subtracting 5992 from 6030 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final outcome is 120607.65153538, with a leftover of 3.8e-08.