745399 ÷ 70 
Let's see how many times 70 fits into 745399.

Step 1:
70 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 70

Step 2:
When dividing 74 by 70, we get 1 with a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 4 after subtracting 70 from 74.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 70

Moving on to step 3:
When dividing 45 by 70, we get 0 with a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtract 0 from 45 to get 45.
Append the next digit (3) from the dividend to 45 and continue with: 453 / 70

On to step 4:
If we divide 453 by 70, we get 6 and a remainder of 33.
Use 6 as the next digit of our solution. 
Result so far: 106.0
The remainder is 33 after subtracting 420 from 453.
Fetch the next digit (9) from the dividend, attach it to 33 and continue: 339 / 70

On to step 5:
When dividing 339 by 70, we get 4 with a remainder of 59.
The number 4 becomes the next digit in our result. 
Result so far: 1064.0
Deduct 280 from 339 and we're left with 59.
Bring next digit (9) of the dividend behind the 59 and repeat the process: 599 / 70

Advancing to step 6:
If we divide 599 by 70, we get 8 and a remainder of 39.
Put 8 as the next digit of the answer. 
Result so far: 10648.0
The remainder is 39 after subtracting 560 from 599.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
The number 70 fits into 390 5 times, leaving a remainder of 40.
The next digit of our result is 5. 
Result so far: 10648.5
Subtract 350 from 390 to get 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 8:
When dividing 400 by 70, we get 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 10648.55
The remainder is 50 after subtracting 350 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 10648.55, with a leftover of 0.05.