90201183 divided by 124 
The aim is to understand the frequency of 124 in 90201183.

On to step 1:
124 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
The remainder is 9 after subtracting 0 from 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 124

On to step 2:
90 divided by 124 is 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 90 to get 90.
Grab the next digit (2) from the dividend, add it to 90, then carry on: 902 / 124

Step 3:
124 goes into 902 7 times with a remainder of 34.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we take 868 away from 902, we end up with 34.
Append the next digit (0) from the dividend to 34 and continue with: 340 / 124

Moving on to step 4:
If we divide 340 by 124, we get 2 and a remainder of 92.
The number 2 becomes the next digit in our result. 
Result so far: 72.0
Subtract 248 from 340 to get 92.
Grab the next digit (1) from the dividend, add it to 92, then carry on: 921 / 124

Going ahead to step 5:
124 can be fit into 921 7 times, resulting in a remainder of 53.
The number 7 becomes the next digit in our result. 
Result so far: 727.0
Deduct 868 from 921 and we're left with 53.
Include the next digit (1) from the dividend after 53, then repeat: 531 / 124

Moving on to step 6:
When dividing 531 by 124, we get 4 with a remainder of 35.
Write down 4 as next digit of the result. 
Result so far: 7274.0
Subtract 496 from 531 to get 35.
Bring next digit (8) of the dividend behind the 35 and repeat the process: 358 / 124

Step 7:
124 can be fit into 358 2 times, resulting in a remainder of 110.
The number 2 becomes the next digit in our result. 
Result so far: 72742.0
The remainder is 110 after subtracting 248 from 358.
Include the next digit (3) from the dividend after 110, then repeat: 1103 / 124

Advancing to step 8:
124 can be fit into 1103 8 times, resulting in a remainder of 111.
The next digit of our result is 8. 
Result so far: 727428.0
Deduct 992 from 1103 and we're left with 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Let's proceed to step 9:
124 goes into 1110 8 times with a remainder of 118.
Use 8 as the next digit of our solution. 
Result so far: 727428.8
Subtracting 992 from 1110 leaves us 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.

Advancing to step 10:
When dividing 1180 by 124, we get 9 with a remainder of 64.
Put 9 as the next digit of the answer. 
Result so far: 727428.89
Subtract 1116 from 1180 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 11:
124 can be fit into 640 5 times, resulting in a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 727428.895
The remainder is 20 after subtracting 620 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 12:
200 divided by 124 is 1 with a remainder of 76.
Write down 1 as next digit of the result. 
Result so far: 727428.8951
If we take 124 away from 200, we end up 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.

On to step 13:
When dividing 760 by 124, we get 6 with a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 727428.89516
The remainder is 16 after subtracting 744 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 14:
160 divided by 124 is 1 with a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 727428.895161
Subtract 124 from 160 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.

On to step 15:
124 can be fit into 360 2 times, resulting in a remainder of 112.
Write down 2 as next digit of the result. 
Result so far: 727428.8951612
Subtract 248 from 360 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 16:
1120 divided by 124 is 9 with a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 727428.89516129
Subtracting 1116 from 1120 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 727428.89516129 with a remaining 4e-09.