We look at the division of 51413710 by 291 
The aim is to understand the frequency of 291 in 51413710.

Step 1:
If we divide 5 by 291, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 291

Step 2:
291 goes into 51 0 times with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Bring next digit (4) of the dividend behind the 51 and repeat the process: 514 / 291

Going ahead to step 3:
When dividing 514 by 291, we get 1 with a remainder of 223.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 291 from 514 to get 223.
Include the next digit (1) from the dividend after 223, then repeat: 2231 / 291

Moving on to step 4:
291 can be fit into 2231 7 times, resulting in a remainder of 194.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 2037 from 2231 leaves us with 194.
Include the next digit (3) from the dividend after 194, then repeat: 1943 / 291

Let's proceed to step 5:
When dividing 1943 by 291, we get 6 with a remainder of 197.
Use 6 as the next digit of our solution. 
Result so far: 176.0
If we subtract 1746 from 1943, we get 197.
Fetch the next digit (7) from the dividend, attach it to 197 and continue: 1977 / 291

Going ahead to step 6:
1977 divided by 291 is 6 with a remainder of 231.
Write down 6 as next digit of the result. 
Result so far: 1766.0
The remainder is 231 after subtracting 1746 from 1977.
Append the next digit (1) from the dividend to 231 and continue with: 2311 / 291

On to step 7:
The number 291 fits into 2311 7 times, leaving a remainder of 274.
Put 7 as the next digit of the answer. 
Result so far: 17667.0
Subtract 2037 from 2311 to get 274.
Include the next digit (0) from the dividend after 274, then repeat: 2740 / 291

Let's proceed to step 8:
If we divide 2740 by 291, we get 9 and a remainder of 121.
Put 9 as the next digit of the answer. 
Result so far: 176679.0
Deduct 2619 from 2740 and we're left with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

On to step 9:
291 goes into 1210 4 times with a remainder of 46.
The next digit of our result is 4. 
Result so far: 176679.4
Deduct 1164 from 1210 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 10:
291 goes into 460 1 times with a remainder of 169.
Record the quotient 1 as the next digit in the result. 
Result so far: 176679.41
Subtract 291 from 460 to get 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Let's proceed to step 11:
1690 divided by 291 is 5 with a remainder of 235.
Write down 5 as next digit of the result. 
Result so far: 176679.415
Deduct 1455 from 1690 and we're left with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Moving on to step 12:
2350 divided by 291 is 8 with a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 176679.4158
Deduct 2328 from 2350 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 13:
291 can be fit into 220 0 times, resulting in a remainder of 220.
Use 0 as the next digit of our solution. 
Result so far: 176679.4158
Deduct 0 from 220 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 14:
291 goes into 2200 7 times with a remainder of 163.
Put 7 as the next digit of the answer. 
Result so far: 176679.415807
If we subtract 2037 from 2200, we get 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Going ahead to step 15:
1630 divided by 291 is 5 with a remainder of 175.
Write down 5 as next digit of the result. 
Result so far: 176679.4158075
Subtracting 1455 from 1630 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Moving on to step 16:
1750 divided by 291 is 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 176679.41580756
If we take 1746 away from 1750, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 176679.41580756, and the remainder is 4e-09.