We look at the division of 690858 by 20 
We're looking to find how many times 20 goes into 690858.

Advancing to step 1:
20 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 20

Advancing to step 2:
If we divide 69 by 20, we get 3 and a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 60 from 69 leaves us with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 20

Moving on to step 3:
When dividing 90 by 20, we get 4 with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 34.0
Deduct 80 from 90 and we're left with 10.
Take the next digit (8) from the dividend and append it to 10, then repeat: 108 / 20

Advancing to step 4:
The number 20 fits into 108 5 times, leaving a remainder of 8.
The number 5 becomes the next digit in our result. 
Result so far: 345.0
Deduct 100 from 108 and we're left with 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 20

Step 5:
20 can be fit into 85 4 times, resulting in a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 3454.0
The remainder is 5 after subtracting 80 from 85.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 20

Going ahead to step 6:
The number 20 fits into 58 2 times, leaving a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 34542.0
Deduct 40 from 58 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 7:
20 goes into 180 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 34542.9
If we subtract 180 from 180, we 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.

Step 8:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 34542.9
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 34542.9
Deduct 0 from 0 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.

The final outcome is 34542.9, with a leftover of 0.0.