We're dividing 645099 by 70 
Our goal is to divide 645099 by 70.

Moving on to step 1:
If we divide 6 by 70, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 70

Going ahead to step 2:
The number 70 fits into 64 0 times, leaving a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Include the next digit (5) from the dividend after 64, then repeat: 645 / 70

Step 3:
If we divide 645 by 70, we get 9 and a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 630 from 645 leaves us with 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 70

On to step 4:
70 can be fit into 150 2 times, resulting in a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 92.0
The remainder is 10 after subtracting 140 from 150.
Include the next digit (9) from the dividend after 10, then repeat: 109 / 70

Step 5:
70 can be fit into 109 1 times, resulting in a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 921.0
The remainder is 39 after subtracting 70 from 109.
Grab the next digit (9) from the dividend, add it to 39, then carry on: 399 / 70

Step 6:
When dividing 399 by 70, we get 5 with a remainder of 49.
Write down 5 as next digit of the result. 
Result so far: 9215.0
Subtract 350 from 399 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 7:
If we divide 490 by 70, we get 7 and a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 9215.7
Subtract 490 from 490 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.

On to step 8:
When dividing 0 by 70, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 9215.7
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.

Moving on to step 9:
70 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 9215.7
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.

In conclusion, the division gives 9215.7 with a balance of 0.0.