We look at the division of 54210590 by 417 
The aim is to understand the frequency of 417 in 54210590.

Going ahead to step 1:
417 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 417

On to step 2:
417 goes into 54 0 times with a remainder of 54.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 54, we end up with 54.
Append the next digit (2) from the dividend to 54 and continue with: 542 / 417

Let's proceed to step 3:
417 can be fit into 542 1 times, resulting in a remainder of 125.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 417 from 542 to get 125.
Bring next digit (1) of the dividend behind the 125 and repeat the process: 1251 / 417

On to step 4:
If we divide 1251 by 417, we get 3 and a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 0 after subtracting 1251 from 1251.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 417

Advancing to step 5:
The number 417 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 130.0
Subtract 0 from 0 to get 0.
Fetch the next digit (5) from the dividend, attach it to 0 and continue: 5 / 417

Moving on to step 6:
When dividing 5 by 417, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 1300.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 417

On to step 7:
If we divide 59 by 417, we get 0 and a remainder of 59.
Use 0 as the next digit of our solution. 
Result so far: 13000.0
Subtracting 0 from 59 leaves us with 59.
Bring next digit (0) of the dividend behind the 59 and repeat the process: 590 / 417

Step 8:
417 goes into 590 1 times with a remainder of 173.
Record the quotient 1 as the next digit in the result. 
Result so far: 130001.0
The remainder is 173 after subtracting 417 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

Moving on to step 9:
If we divide 1730 by 417, we get 4 and a remainder of 62.
The next digit of our result is 4. 
Result so far: 130001.4
The remainder is 62 after subtracting 1668 from 1730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 10:
620 divided by 417 is 1 with a remainder of 203.
Record the quotient 1 as the next digit in the result. 
Result so far: 130001.41
If we take 417 away from 620, we end up with 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Advancing to step 11:
When dividing 2030 by 417, we get 4 with a remainder of 362.
The next digit of our result is 4. 
Result so far: 130001.414
Subtract 1668 from 2030 to get 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Step 12:
417 goes into 3620 8 times with a remainder of 284.
Write down 8 as next digit of the result. 
Result so far: 130001.4148
If we take 3336 away from 3620, we end up with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Going ahead to step 13:
417 can be fit into 2840 6 times, resulting in a remainder of 338.
Use 6 as the next digit of our solution. 
Result so far: 130001.41486
Subtract 2502 from 2840 to get 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Advancing to step 14:
If we divide 3380 by 417, we get 8 and a remainder of 44.
Record the quotient 8 as the next digit in the result. 
Result so far: 130001.414868
Deduct 3336 from 3380 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 15:
417 goes into 440 1 times with a remainder of 23.
The next digit of our result is 1. 
Result so far: 130001.4148681
If we subtract 417 from 440, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 16:
417 goes into 230 0 times with a remainder of 230.
Record the quotient 0 as the next digit in the result. 
Result so far: 130001.4148681
Subtract 0 from 230 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

The quotient of the division is 130001.4148681, and the remainder is 2.3e-07.