We divide 353486 by 7
The aim is to understand the frequency of 7 in 353486.

Advancing to step 1:
The number 7 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 7

On to step 2:
35 divided by 7 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 5.0
If we subtract 35 from 35, we get 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 7

Step 3:
7 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 50.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 7

Let's proceed to step 4:
The number 7 fits into 34 4 times, leaving a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 504.0
Deduct 28 from 34 and we're left with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 7

Going ahead to step 5:
7 goes into 68 9 times with a remainder of 5.
The next digit of our result is 9. 
Result so far: 5049.0
If we subtract 63 from 68, we get 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 7

Let's proceed to step 6:
56 divided by 7 is 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 50498.0
Deduct 56 from 56 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
When dividing 0 by 7, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 50498.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
7 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 50498.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 50498.0, and the remainder is 0.0.