859406 ÷ 3 
The aim is to understand the frequency of 3 in 859406.

Advancing to step 1:
If we divide 8 by 3, we get 2 and a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 6 from 8 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 3

Going ahead to step 2:
The number 3 fits into 25 8 times, leaving a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 28.0
If we take 24 away from 25, we end up with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 3

Advancing to step 3:
19 divided by 3 is 6 with a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 286.0
Deduct 18 from 19 and we're left with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 3

Advancing to step 4:
3 goes into 14 4 times with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 2864.0
If we take 12 away from 14, we end up with 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 3

Let's proceed to step 5:
When dividing 20 by 3, we get 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 28646.0
Deduct 18 from 20 and we're left with 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 3

Advancing to step 6:
26 divided by 3 is 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 286468.0
Subtract 24 from 26 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
3 goes into 20 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 286468.6
Deduct 18 from 20 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
When dividing 20 by 3, we get 6 with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 286468.66
If we take 18 away from 20, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Our division results in 286468.66 with a remaining 0.002.