Let's divide 7859 by 22
We want to figure out the number of times 7859 can be divided by 22.

Step 1:
If we divide 7 by 22, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 22

On to step 2:
78 divided by 22 is 3 with a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 66 from 78 and we're left with 12.
Bring next digit (5) of the dividend behind the 12 and repeat the process: 125 / 22

Advancing to step 3:
If we divide 125 by 22, we get 5 and a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 35.0
If we subtract 110 from 125, we get 15.
Grab the next digit (9) from the dividend, add it to 15, then carry on: 159 / 22

Step 4:
22 can be fit into 159 7 times, resulting in a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 357.0
Subtracting 154 from 159 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 5:
The number 22 fits into 50 2 times, leaving a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 357.2
Deduct 44 from 50 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 6:
If we divide 60 by 22, we get 2 and a remainder of 16.
The next digit of our result is 2. 
Result so far: 357.22
If we take 44 away from 60, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 357.22, with a leftover of 0.016.