59430258 divided by 345 
The aim is to understand the frequency of 345 in 59430258.

Moving on to step 1:
When dividing 5 by 345, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
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 / 345

Moving on to step 2:
When dividing 59 by 345, we get 0 with a remainder of 59.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 59, we end up with 59.
Grab the next digit (4) from the dividend, add it to 59, then carry on: 594 / 345

Moving on to step 3:
345 goes into 594 1 times with a remainder of 249.
The next digit of our result is 1. 
Result so far: 1.0
If we take 345 away from 594, we end up with 249.
Grab the next digit (3) from the dividend, add it to 249, then carry on: 2493 / 345

Going ahead to step 4:
345 goes into 2493 7 times with a remainder of 78.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
The remainder is 78 after subtracting 2415 from 2493.
Bring next digit (0) of the dividend behind the 78 and repeat the process: 780 / 345

Step 5:
When dividing 780 by 345, we get 2 with a remainder of 90.
Record the quotient 2 as the next digit in the result. 
Result so far: 172.0
Subtract 690 from 780 to get 90.
Fetch the next digit (2) from the dividend, attach it to 90 and continue: 902 / 345

Moving on to step 6:
345 can be fit into 902 2 times, resulting in a remainder of 212.
The next digit of our result is 2. 
Result so far: 1722.0
Deduct 690 from 902 and we're left with 212.
Include the next digit (5) from the dividend after 212, then repeat: 2125 / 345

On to step 7:
If we divide 2125 by 345, we get 6 and a remainder of 55.
The next digit of our result is 6. 
Result so far: 17226.0
If we take 2070 away from 2125, we end up with 55.
Append the next digit (8) from the dividend to 55 and continue with: 558 / 345

On to step 8:
345 can be fit into 558 1 times, resulting in a remainder of 213.
Write down 1 as next digit of the result. 
Result so far: 172261.0
If we subtract 345 from 558, we get 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Moving on to step 9:
345 goes into 2130 6 times with a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 172261.6
The remainder is 60 after subtracting 2070 from 2130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 10:
When dividing 600 by 345, we get 1 with a remainder of 255.
The number 1 becomes the next digit in our result. 
Result so far: 172261.61
Subtract 345 from 600 to get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

On to step 11:
2550 divided by 345 is 7 with a remainder of 135.
Record the quotient 7 as the next digit in the result. 
Result so far: 172261.617
Deduct 2415 from 2550 and we're left with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Moving on to step 12:
345 can be fit into 1350 3 times, resulting in a remainder of 315.
Use 3 as the next digit of our solution. 
Result so far: 172261.6173
If we take 1035 away from 1350, we end up with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Moving on to step 13:
The number 345 fits into 3150 9 times, leaving a remainder of 45.
Use 9 as the next digit of our solution. 
Result so far: 172261.61739
If we take 3105 away from 3150, 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.

Advancing to step 14:
The number 345 fits into 450 1 times, leaving a remainder of 105.
Put 1 as the next digit of the answer. 
Result so far: 172261.617391
The remainder is 105 after subtracting 345 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Going ahead to step 15:
345 can be fit into 1050 3 times, resulting in a remainder of 15.
Use 3 as the next digit of our solution. 
Result so far: 172261.6173913
The remainder is 15 after subtracting 1035 from 1050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 16:
If we divide 150 by 345, we get 0 and a remainder of 150.
Use 0 as the next digit of our solution. 
Result so far: 172261.6173913
Deduct 0 from 150 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Our division results in 172261.6173913 with a remaining 1.5e-07.