We look at the division of 15319862 by 301 
The aim is to understand the frequency of 301 in 15319862.

Going ahead to step 1:
When dividing 1 by 301, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 301

Moving on to step 2:
301 goes into 15 0 times with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 301

Step 3:
153 divided by 301 is 0 with a remainder of 153.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 153, we get 153.
Fetch the next digit (1) from the dividend, attach it to 153 and continue: 1531 / 301

Going ahead to step 4:
1531 divided by 301 is 5 with a remainder of 26.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 1505 from 1531 and we're left with 26.
Bring next digit (9) of the dividend behind the 26 and repeat the process: 269 / 301

Going ahead to step 5:
When dividing 269 by 301, we get 0 with a remainder of 269.
Write down 0 as next digit of the result. 
Result so far: 50.0
Deduct 0 from 269 and we're left with 269.
Grab the next digit (8) from the dividend, add it to 269, then carry on: 2698 / 301

Going ahead to step 6:
The number 301 fits into 2698 8 times, leaving a remainder of 290.
The next digit of our result is 8. 
Result so far: 508.0
If we take 2408 away from 2698, we end up with 290.
Append the next digit (6) from the dividend to 290 and continue with: 2906 / 301

Advancing to step 7:
The number 301 fits into 2906 9 times, leaving a remainder of 197.
Record the quotient 9 as the next digit in the result. 
Result so far: 5089.0
The remainder is 197 after subtracting 2709 from 2906.
Bring next digit (2) of the dividend behind the 197 and repeat the process: 1972 / 301

Step 8:
When dividing 1972 by 301, we get 6 with a remainder of 166.
Put 6 as the next digit of the answer. 
Result so far: 50896.0
The remainder is 166 after subtracting 1806 from 1972.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Advancing to step 9:
When dividing 1660 by 301, we get 5 with a remainder of 155.
Write down 5 as next digit of the result. 
Result so far: 50896.5
Deduct 1505 from 1660 and we're left with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Step 10:
1550 divided by 301 is 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 50896.55
If we take 1505 away from 1550, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

After the division, we end up with 50896.55 and a remainder of 0.045.