We look at the division of 42061739 by 351 
The aim is to understand the frequency of 351 in 42061739.

On to step 1:
When dividing 4 by 351, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 351

Let's proceed to step 2:
351 goes into 42 0 times with a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 351

Let's proceed to step 3:
351 can be fit into 420 1 times, resulting in a remainder of 69.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 351 from 420 to get 69.
Bring next digit (6) of the dividend behind the 69 and repeat the process: 696 / 351

On to step 4:
351 can be fit into 696 1 times, resulting in a remainder of 345.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtract 351 from 696 to get 345.
Take the next digit (1) from the dividend and append it to 345, then repeat: 3451 / 351

Going ahead to step 5:
351 can be fit into 3451 9 times, resulting in a remainder of 292.
Use 9 as the next digit of our solution. 
Result so far: 119.0
If we take 3159 away from 3451, we end up with 292.
Append the next digit (7) from the dividend to 292 and continue with: 2927 / 351

Step 6:
351 can be fit into 2927 8 times, resulting in a remainder of 119.
Record the quotient 8 as the next digit in the result. 
Result so far: 1198.0
The remainder is 119 after subtracting 2808 from 2927.
Include the next digit (3) from the dividend after 119, then repeat: 1193 / 351

On to step 7:
The number 351 fits into 1193 3 times, leaving a remainder of 140.
The next digit of our result is 3. 
Result so far: 11983.0
If we subtract 1053 from 1193, we get 140.
Grab the next digit (9) from the dividend, add it to 140, then carry on: 1409 / 351

On to step 8:
If we divide 1409 by 351, we get 4 and a remainder of 5.
The next digit of our result is 4. 
Result so far: 119834.0
Subtract 1404 from 1409 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
50 divided by 351 is 0 with a remainder of 50.
The next digit of our result is 0. 
Result so far: 119834.0
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
500 divided by 351 is 1 with a remainder of 149.
Use 1 as the next digit of our solution. 
Result so far: 119834.01
The remainder is 149 after subtracting 351 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Step 11:
351 goes into 1490 4 times with a remainder of 86.
Put 4 as the next digit of the answer. 
Result so far: 119834.014
If we take 1404 away from 1490, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 12:
The number 351 fits into 860 2 times, leaving a remainder of 158.
The next digit of our result is 2. 
Result so far: 119834.0142
Subtracting 702 from 860 leaves us with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Advancing to step 13:
If we divide 1580 by 351, we get 4 and a remainder of 176.
The next digit of our result is 4. 
Result so far: 119834.01424
Subtracting 1404 from 1580 leaves us with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Going ahead to step 14:
351 goes into 1760 5 times with a remainder of 5.
The next digit of our result is 5. 
Result so far: 119834.014245
The remainder is 5 after subtracting 1755 from 1760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 15:
When dividing 50 by 351, we get 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 119834.014245
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 16:
When dividing 500 by 351, we get 1 with a remainder of 149.
Write down 1 as next digit of the result. 
Result so far: 119834.01424501
The remainder is 149 after subtracting 351 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Our division results in 119834.01424501 with a remaining 1.49e-07.