99636901 divided by 376 
The aim is to understand the frequency of 376 in 99636901.

Moving on to step 1:
If we divide 9 by 376, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 376

Let's proceed to step 2:
376 can be fit into 99 0 times, resulting in a remainder of 99.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 99 to get 99.
Take the next digit (6) from the dividend and append it to 99, then repeat: 996 / 376

Step 3:
376 goes into 996 2 times with a remainder of 244.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 752 from 996 and we're left with 244.
Include the next digit (3) from the dividend after 244, then repeat: 2443 / 376

Step 4:
2443 divided by 376 is 6 with a remainder of 187.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
Deduct 2256 from 2443 and we're left with 187.
Take the next digit (6) from the dividend and append it to 187, then repeat: 1876 / 376

Let's proceed to step 5:
The number 376 fits into 1876 4 times, leaving a remainder of 372.
The next digit of our result is 4. 
Result so far: 264.0
Subtract 1504 from 1876 to get 372.
Bring next digit (9) of the dividend behind the 372 and repeat the process: 3729 / 376

Moving on to step 6:
The number 376 fits into 3729 9 times, leaving a remainder of 345.
The number 9 becomes the next digit in our result. 
Result so far: 2649.0
If we take 3384 away from 3729, we end up with 345.
Bring next digit (0) of the dividend behind the 345 and repeat the process: 3450 / 376

On to step 7:
3450 divided by 376 is 9 with a remainder of 66.
Use 9 as the next digit of our solution. 
Result so far: 26499.0
Deduct 3384 from 3450 and we're left with 66.
Grab the next digit (1) from the dividend, add it to 66, then carry on: 661 / 376

Moving on to step 8:
If we divide 661 by 376, we get 1 and a remainder of 285.
Record the quotient 1 as the next digit in the result. 
Result so far: 264991.0
If we subtract 376 from 661, we get 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Moving on to step 9:
When dividing 2850 by 376, we get 7 with a remainder of 218.
The next digit of our result is 7. 
Result so far: 264991.7
Subtracting 2632 from 2850 leaves us with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Moving on to step 10:
If we divide 2180 by 376, we get 5 and a remainder of 300.
Record the quotient 5 as the next digit in the result. 
Result so far: 264991.75
If we take 1880 away from 2180, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 11:
When dividing 3000 by 376, we get 7 with a remainder of 368.
The next digit of our result is 7. 
Result so far: 264991.757
Subtract 2632 from 3000 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Moving on to step 12:
376 goes into 3680 9 times with a remainder of 296.
Record the quotient 9 as the next digit in the result. 
Result so far: 264991.7579
Subtracting 3384 from 3680 leaves us with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Let's proceed to step 13:
If we divide 2960 by 376, we get 7 and a remainder of 328.
Put 7 as the next digit of the answer. 
Result so far: 264991.75797
If we subtract 2632 from 2960, we get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Step 14:
376 can be fit into 3280 8 times, resulting in a remainder of 272.
Use 8 as the next digit of our solution. 
Result so far: 264991.757978
Subtract 3008 from 3280 to get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

On to step 15:
2720 divided by 376 is 7 with a remainder of 88.
The number 7 becomes the next digit in our result. 
Result so far: 264991.7579787
Subtracting 2632 from 2720 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 16:
The number 376 fits into 880 2 times, leaving a remainder of 128.
The number 2 becomes the next digit in our result. 
Result so far: 264991.75797872
If we take 752 away from 880, we end up with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

The final outcome is 264991.75797872, with a leftover of 1.28e-07.