We're dividing 10154220 by 591 
The aim is to understand the frequency of 591 in 10154220.

Going ahead to step 1:
The number 591 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 591

Step 2:
591 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Grab the next digit (1) from the dividend, add it to 10, then carry on: 101 / 591

Moving on to step 3:
591 can be fit into 101 0 times, resulting in a remainder of 101.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 101 to get 101.
Append the next digit (5) from the dividend to 101 and continue with: 1015 / 591

Moving on to step 4:
591 can be fit into 1015 1 times, resulting in a remainder of 424.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 591 from 1015 leaves us with 424.
Fetch the next digit (4) from the dividend, attach it to 424 and continue: 4244 / 591

Let's proceed to step 5:
The number 591 fits into 4244 7 times, leaving a remainder of 107.
Use 7 as the next digit of our solution. 
Result so far: 17.0
The remainder is 107 after subtracting 4137 from 4244.
Bring next digit (2) of the dividend behind the 107 and repeat the process: 1072 / 591

Advancing to step 6:
591 can be fit into 1072 1 times, resulting in a remainder of 481.
The next digit of our result is 1. 
Result so far: 171.0
Deduct 591 from 1072 and we're left with 481.
Bring next digit (2) of the dividend behind the 481 and repeat the process: 4812 / 591

On to step 7:
When dividing 4812 by 591, we get 8 with a remainder of 84.
Use 8 as the next digit of our solution. 
Result so far: 1718.0
If we subtract 4728 from 4812, we get 84.
Include the next digit (0) from the dividend after 84, then repeat: 840 / 591

Moving on to step 8:
591 goes into 840 1 times with a remainder of 249.
The number 1 becomes the next digit in our result. 
Result so far: 17181.0
Deduct 591 from 840 and we're left with 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Going ahead to step 9:
591 can be fit into 2490 4 times, resulting in a remainder of 126.
Put 4 as the next digit of the answer. 
Result so far: 17181.4
If we subtract 2364 from 2490, we get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Advancing to step 10:
591 goes into 1260 2 times with a remainder of 78.
Record the quotient 2 as the next digit in the result. 
Result so far: 17181.42
Deduct 1182 from 1260 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 11:
591 goes into 780 1 times with a remainder of 189.
The number 1 becomes the next digit in our result. 
Result so far: 17181.421
If we take 591 away from 780, we end up with 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

Going ahead to step 12:
When dividing 1890 by 591, we get 3 with a remainder of 117.
Put 3 as the next digit of the answer. 
Result so far: 17181.4213
If we subtract 1773 from 1890, we get 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Going ahead to step 13:
591 can be fit into 1170 1 times, resulting in a remainder of 579.
Put 1 as the next digit of the answer. 
Result so far: 17181.42131
Subtracting 591 from 1170 leaves us with 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

Advancing to step 14:
The number 591 fits into 5790 9 times, leaving a remainder of 471.
Record the quotient 9 as the next digit in the result. 
Result so far: 17181.421319
If we subtract 5319 from 5790, we get 471.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4710, and continue the process.

Going ahead to step 15:
When dividing 4710 by 591, we get 7 with a remainder of 573.
Use 7 as the next digit of our solution. 
Result so far: 17181.4213197
If we take 4137 away from 4710, we end up with 573.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

Moving on to step 16:
5730 divided by 591 is 9 with a remainder of 411.
The next digit of our result is 9. 
Result so far: 17181.42131979
If we take 5319 away from 5730, we end up with 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

The final outcome is 17181.42131979, with a leftover of 4.11e-07.