We're dividing 10383388 by 601 
The aim is to understand the frequency of 601 in 10383388.

Step 1:
The number 601 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 601

Advancing to step 2:
The number 601 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 10, we end up with 10.
Bring next digit (3) of the dividend behind the 10 and repeat the process: 103 / 601

Moving on to step 3:
The number 601 fits into 103 0 times, leaving a remainder of 103.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 103, we end up with 103.
Fetch the next digit (8) from the dividend, attach it to 103 and continue: 1038 / 601

Step 4:
601 can be fit into 1038 1 times, resulting in a remainder of 437.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 601 away from 1038, we end up with 437.
Append the next digit (3) from the dividend to 437 and continue with: 4373 / 601

Step 5:
4373 divided by 601 is 7 with a remainder of 166.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we take 4207 away from 4373, we end up with 166.
Include the next digit (3) from the dividend after 166, then repeat: 1663 / 601

On to step 6:
The number 601 fits into 1663 2 times, leaving a remainder of 461.
Write down 2 as next digit of the result. 
Result so far: 172.0
Subtract 1202 from 1663 to get 461.
Append the next digit (8) from the dividend to 461 and continue with: 4618 / 601

Step 7:
601 goes into 4618 7 times with a remainder of 411.
Write down 7 as next digit of the result. 
Result so far: 1727.0
The remainder is 411 after subtracting 4207 from 4618.
Append the next digit (8) from the dividend to 411 and continue with: 4118 / 601

Going ahead to step 8:
601 goes into 4118 6 times with a remainder of 512.
The number 6 becomes the next digit in our result. 
Result so far: 17276.0
Deduct 3606 from 4118 and we're left with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Going ahead to step 9:
When dividing 5120 by 601, we get 8 with a remainder of 312.
Use 8 as the next digit of our solution. 
Result so far: 17276.8
If we subtract 4808 from 5120, we get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Step 10:
601 can be fit into 3120 5 times, resulting in a remainder of 115.
Use 5 as the next digit of our solution. 
Result so far: 17276.85
Subtracting 3005 from 3120 leaves us 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.

Moving on to step 11:
1150 divided by 601 is 1 with a remainder of 549.
The next digit of our result is 1. 
Result so far: 17276.851
If we subtract 601 from 1150, we get 549.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5490, and continue the process.

Going ahead to step 12:
601 goes into 5490 9 times with a remainder of 81.
The next digit of our result is 9. 
Result so far: 17276.8519
Deduct 5409 from 5490 and we're left with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Step 13:
When dividing 810 by 601, we get 1 with a remainder of 209.
Record the quotient 1 as the next digit in the result. 
Result so far: 17276.85191
If we subtract 601 from 810, we get 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Moving on to step 14:
601 goes into 2090 3 times with a remainder of 287.
Record the quotient 3 as the next digit in the result. 
Result so far: 17276.851913
The remainder is 287 after subtracting 1803 from 2090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

On to step 15:
The number 601 fits into 2870 4 times, leaving a remainder of 466.
Record the quotient 4 as the next digit in the result. 
Result so far: 17276.8519134
The remainder is 466 after subtracting 2404 from 2870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Advancing to step 16:
601 can be fit into 4660 7 times, resulting in a remainder of 453.
Put 7 as the next digit of the answer. 
Result so far: 17276.85191347
Subtracting 4207 from 4660 leaves us with 453.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4530, and continue the process.

The final result is 17276.85191347 with a remainder of 4.53e-07.