9021 ÷ 70 
We want to figure out the number of times 9021 can be divided by 70.

Advancing to step 1:
70 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 70

On to step 2:
If we divide 90 by 70, we get 1 and a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 70 away from 90, we end up with 20.
Append the next digit (2) from the dividend to 20 and continue with: 202 / 70

Going ahead to step 3:
70 can be fit into 202 2 times, resulting in a remainder of 62.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 140 from 202 and we're left with 62.
Bring next digit (1) of the dividend behind the 62 and repeat the process: 621 / 70

Going ahead to step 4:
The number 70 fits into 621 8 times, leaving a remainder of 61.
Write down 8 as next digit of the result. 
Result so far: 128.0
The remainder is 61 after subtracting 560 from 621.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 5:
If we divide 610 by 70, we get 8 and a remainder of 50.
The next digit of our result is 8. 
Result so far: 128.8
The remainder is 50 after subtracting 560 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 6:
When dividing 500 by 70, we get 7 with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 128.87
If we subtract 490 from 500, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
When dividing 100 by 70, we get 1 with a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 128.871
The remainder is 30 after subtracting 70 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 8:
70 goes into 300 4 times with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 128.8714
Deduct 280 from 300 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
The number 70 fits into 200 2 times, leaving a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 128.87142
Deduct 140 from 200 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 10:
70 can be fit into 600 8 times, resulting in a remainder of 40.
Put 8 as the next digit of the answer. 
Result so far: 128.871428
Deduct 560 from 600 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
When dividing 400 by 70, we get 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 128.8714285
Deduct 350 from 400 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 12:
If we divide 500 by 70, we get 7 and a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 128.87142857
The remainder is 10 after subtracting 490 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 128.87142857 with a remainder of 1e-08.