We look at the division of 70490 by 89 
We want to figure out the number of times 70490 can be divided by 89.

Let's proceed to step 1:
The number 89 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 89

Let's proceed to step 2:
When dividing 70 by 89, we get 0 with a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 70 to get 70.
Fetch the next digit (4) from the dividend, attach it to 70 and continue: 704 / 89

Advancing to step 3:
The number 89 fits into 704 7 times, leaving a remainder of 81.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 623 from 704 and we're left with 81.
Bring next digit (9) of the dividend behind the 81 and repeat the process: 819 / 89

Advancing to step 4:
If we divide 819 by 89, we get 9 and a remainder of 18.
The next digit of our result is 9. 
Result so far: 79.0
If we subtract 801 from 819, we get 18.
Take the next digit (0) from the dividend and append it to 18, then repeat: 180 / 89

Moving on to step 5:
89 goes into 180 2 times with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 792.0
If we subtract 178 from 180, we 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.

Advancing to step 6:
If we divide 20 by 89, we get 0 and a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 792.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 7:
89 can be fit into 200 2 times, resulting in a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 792.02
The remainder is 22 after subtracting 178 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 8:
89 can be fit into 220 2 times, resulting in a remainder of 42.
The next digit of our result is 2. 
Result so far: 792.022
If we take 178 away from 220, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

The final outcome is 792.022, with a leftover of 0.0042.