41984341 ÷ 345 
The aim is to understand the frequency of 345 in 41984341.

Advancing to step 1:
4 divided by 345 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 345

Going ahead to step 2:
If we divide 41 by 345, we get 0 and a remainder of 41.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 41 and we're left with 41.
Include the next digit (9) from the dividend after 41, then repeat: 419 / 345

Going ahead to step 3:
345 can be fit into 419 1 times, resulting in a remainder of 74.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 74 after subtracting 345 from 419.
Bring next digit (8) of the dividend behind the 74 and repeat the process: 748 / 345

Moving on to step 4:
When dividing 748 by 345, we get 2 with a remainder of 58.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 690 from 748 to get 58.
Grab the next digit (4) from the dividend, add it to 58, then carry on: 584 / 345

Step 5:
345 goes into 584 1 times with a remainder of 239.
Write down 1 as next digit of the result. 
Result so far: 121.0
The remainder is 239 after subtracting 345 from 584.
Fetch the next digit (3) from the dividend, attach it to 239 and continue: 2393 / 345

Advancing to step 6:
2393 divided by 345 is 6 with a remainder of 323.
Record the quotient 6 as the next digit in the result. 
Result so far: 1216.0
The remainder is 323 after subtracting 2070 from 2393.
Bring next digit (4) of the dividend behind the 323 and repeat the process: 3234 / 345

Let's proceed to step 7:
345 can be fit into 3234 9 times, resulting in a remainder of 129.
Put 9 as the next digit of the answer. 
Result so far: 12169.0
The remainder is 129 after subtracting 3105 from 3234.
Include the next digit (1) from the dividend after 129, then repeat: 1291 / 345

Let's proceed to step 8:
345 goes into 1291 3 times with a remainder of 256.
Write down 3 as next digit of the result. 
Result so far: 121693.0
Deduct 1035 from 1291 and we're left with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Step 9:
When dividing 2560 by 345, we get 7 with a remainder of 145.
Put 7 as the next digit of the answer. 
Result so far: 121693.7
Subtract 2415 from 2560 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Let's proceed to step 10:
345 can be fit into 1450 4 times, resulting in a remainder of 70.
The next digit of our result is 4. 
Result so far: 121693.74
The remainder is 70 after subtracting 1380 from 1450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 11:
345 can be fit into 700 2 times, resulting in a remainder of 10.
The next digit of our result is 2. 
Result so far: 121693.742
Deduct 690 from 700 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 12:
If we divide 100 by 345, we get 0 and a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 121693.742
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 13:
The number 345 fits into 1000 2 times, leaving a remainder of 310.
The number 2 becomes the next digit in our result. 
Result so far: 121693.74202
The remainder is 310 after subtracting 690 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Step 14:
345 goes into 3100 8 times with a remainder of 340.
Put 8 as the next digit of the answer. 
Result so far: 121693.742028
Subtract 2760 from 3100 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Moving on to step 15:
345 can be fit into 3400 9 times, resulting in a remainder of 295.
Record the quotient 9 as the next digit in the result. 
Result so far: 121693.7420289
Deduct 3105 from 3400 and we're left with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Going ahead to step 16:
345 goes into 2950 8 times with a remainder of 190.
The number 8 becomes the next digit in our result. 
Result so far: 121693.74202898
The remainder is 190 after subtracting 2760 from 2950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

The quotient of the division is 121693.74202898, and the remainder is 1.9e-07.