70989080 ÷ 390 
We want to figure out the number of times 70989080 can be divided by 390.

Advancing to step 1:
390 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 390

Going ahead to step 2:
When dividing 70 by 390, we get 0 with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 70 leaves us with 70.
Append the next digit (9) from the dividend to 70 and continue with: 709 / 390

Moving on to step 3:
390 can be fit into 709 1 times, resulting in a remainder of 319.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 390 from 709 leaves us with 319.
Include the next digit (8) from the dividend after 319, then repeat: 3198 / 390

Moving on to step 4:
If we divide 3198 by 390, we get 8 and a remainder of 78.
Use 8 as the next digit of our solution. 
Result so far: 18.0
If we subtract 3120 from 3198, we get 78.
Fetch the next digit (9) from the dividend, attach it to 78 and continue: 789 / 390

Going ahead to step 5:
390 goes into 789 2 times with a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 182.0
Subtract 780 from 789 to get 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 390

Step 6:
If we divide 90 by 390, we get 0 and a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 1820.0
Subtract 0 from 90 to get 90.
Grab the next digit (8) from the dividend, add it to 90, then carry on: 908 / 390

Let's proceed to step 7:
908 divided by 390 is 2 with a remainder of 128.
The number 2 becomes the next digit in our result. 
Result so far: 18202.0
Deduct 780 from 908 and we're left with 128.
Fetch the next digit (0) from the dividend, attach it to 128 and continue: 1280 / 390

Advancing to step 8:
390 can be fit into 1280 3 times, resulting in a remainder of 110.
Use 3 as the next digit of our solution. 
Result so far: 182023.0
Subtract 1170 from 1280 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 9:
390 goes into 1100 2 times with a remainder of 320.
Put 2 as the next digit of the answer. 
Result so far: 182023.2
Deduct 780 from 1100 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 10:
390 goes into 3200 8 times with a remainder of 80.
The next digit of our result is 8. 
Result so far: 182023.28
If we subtract 3120 from 3200, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 11:
When dividing 800 by 390, we get 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 182023.282
Deduct 780 from 800 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.

On to step 12:
390 can be fit into 200 0 times, resulting in a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 182023.282
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 13:
2000 divided by 390 is 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 182023.28205
Deduct 1950 from 2000 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.

Advancing to step 14:
500 divided by 390 is 1 with a remainder of 110.
The next digit of our result is 1. 
Result so far: 182023.282051
If we take 390 away from 500, we end up with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 15:
When dividing 1100 by 390, we get 2 with a remainder of 320.
Write down 2 as next digit of the result. 
Result so far: 182023.2820512
Deduct 780 from 1100 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 16:
390 can be fit into 3200 8 times, resulting in a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 182023.28205128
The remainder is 80 after subtracting 3120 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 182023.28205128 with a remainder of 8e-08.