49149151 divided by 901 
The aim is to understand the frequency of 901 in 49149151.

Going ahead to step 1:
4 divided by 901 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 901

Step 2:
901 goes into 49 0 times with a remainder of 49.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 49 and we're left with 49.
Bring next digit (1) of the dividend behind the 49 and repeat the process: 491 / 901

Let's proceed to step 3:
491 divided by 901 is 0 with a remainder of 491.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 491, we end up with 491.
Bring next digit (4) of the dividend behind the 491 and repeat the process: 4914 / 901

Advancing to step 4:
901 can be fit into 4914 5 times, resulting in a remainder of 409.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 4505 from 4914 and we're left with 409.
Bring next digit (9) of the dividend behind the 409 and repeat the process: 4099 / 901

Advancing to step 5:
When dividing 4099 by 901, we get 4 with a remainder of 495.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
Subtract 3604 from 4099 to get 495.
Include the next digit (1) from the dividend after 495, then repeat: 4951 / 901

Step 6:
901 can be fit into 4951 5 times, resulting in a remainder of 446.
The number 5 becomes the next digit in our result. 
Result so far: 545.0
Subtracting 4505 from 4951 leaves us with 446.
Grab the next digit (5) from the dividend, add it to 446, then carry on: 4465 / 901

On to step 7:
The number 901 fits into 4465 4 times, leaving a remainder of 861.
Use 4 as the next digit of our solution. 
Result so far: 5454.0
If we take 3604 away from 4465, we end up with 861.
Fetch the next digit (1) from the dividend, attach it to 861 and continue: 8611 / 901

Moving on to step 8:
When dividing 8611 by 901, we get 9 with a remainder of 502.
The number 9 becomes the next digit in our result. 
Result so far: 54549.0
Deduct 8109 from 8611 and we're left with 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

On to step 9:
The number 901 fits into 5020 5 times, leaving a remainder of 515.
The number 5 becomes the next digit in our result. 
Result so far: 54549.5
The remainder is 515 after subtracting 4505 from 5020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Step 10:
When dividing 5150 by 901, we get 5 with a remainder of 645.
The next digit of our result is 5. 
Result so far: 54549.55
If we subtract 4505 from 5150, we get 645.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6450, and continue the process.

After the division, we end up with 54549.55 and a remainder of 0.645.