We look at the division of 51307806 by 201 
The aim is to understand the frequency of 201 in 51307806.

Going ahead to step 1:
201 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 201

On to step 2:
If we divide 51 by 201, we get 0 and a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Grab the next digit (3) from the dividend, add it to 51, then carry on: 513 / 201

Going ahead to step 3:
201 can be fit into 513 2 times, resulting in a remainder of 111.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 402 away from 513, we end up with 111.
Take the next digit (0) from the dividend and append it to 111, then repeat: 1110 / 201

Going ahead to step 4:
When dividing 1110 by 201, we get 5 with a remainder of 105.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Subtracting 1005 from 1110 leaves us with 105.
Grab the next digit (7) from the dividend, add it to 105, then carry on: 1057 / 201

Moving on to step 5:
When dividing 1057 by 201, we get 5 with a remainder of 52.
Record the quotient 5 as the next digit in the result. 
Result so far: 255.0
Subtracting 1005 from 1057 leaves us with 52.
Fetch the next digit (8) from the dividend, attach it to 52 and continue: 528 / 201

Moving on to step 6:
When dividing 528 by 201, we get 2 with a remainder of 126.
Put 2 as the next digit of the answer. 
Result so far: 2552.0
Deduct 402 from 528 and we're left with 126.
Grab the next digit (0) from the dividend, add it to 126, then carry on: 1260 / 201

Step 7:
201 can be fit into 1260 6 times, resulting in a remainder of 54.
Use 6 as the next digit of our solution. 
Result so far: 25526.0
If we subtract 1206 from 1260, we get 54.
Bring next digit (6) of the dividend behind the 54 and repeat the process: 546 / 201

Going ahead to step 8:
If we divide 546 by 201, we get 2 and a remainder of 144.
Use 2 as the next digit of our solution. 
Result so far: 255262.0
Subtracting 402 from 546 leaves us with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Step 9:
When dividing 1440 by 201, we get 7 with a remainder of 33.
Put 7 as the next digit of the answer. 
Result so far: 255262.7
The remainder is 33 after subtracting 1407 from 1440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 10:
330 divided by 201 is 1 with a remainder of 129.
Put 1 as the next digit of the answer. 
Result so far: 255262.71
Subtract 201 from 330 to get 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Moving on to step 11:
201 goes into 1290 6 times with a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 255262.716
If we subtract 1206 from 1290, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 12:
201 can be fit into 840 4 times, resulting in a remainder of 36.
The next digit of our result is 4. 
Result so far: 255262.7164
Deduct 804 from 840 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 13:
The number 201 fits into 360 1 times, leaving a remainder of 159.
Put 1 as the next digit of the answer. 
Result so far: 255262.71641
If we subtract 201 from 360, we get 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

On to step 14:
1590 divided by 201 is 7 with a remainder of 183.
Write down 7 as next digit of the result. 
Result so far: 255262.716417
The remainder is 183 after subtracting 1407 from 1590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Going ahead to step 15:
201 goes into 1830 9 times with a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 255262.7164179
If we take 1809 away from 1830, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 16:
When dividing 210 by 201, we get 1 with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 255262.71641791
Subtract 201 from 210 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The final result is 255262.71641791 with a remainder of 9e-09.