42553351 ÷ 70 
Let's see how many times 70 fits into 42553351.

Let's proceed to step 1:
4 divided by 70 is 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 70

Step 2:
70 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Include the next digit (5) from the dividend after 42, then repeat: 425 / 70

Going ahead to step 3:
425 divided by 70 is 6 with a remainder of 5.
The next digit of our result is 6. 
Result so far: 6.0
The remainder is 5 after subtracting 420 from 425.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 70

Moving on to step 4:
When dividing 55 by 70, we get 0 with a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 60.0
Subtracting 0 from 55 leaves us with 55.
Grab the next digit (3) from the dividend, add it to 55, then carry on: 553 / 70

On to step 5:
The number 70 fits into 553 7 times, leaving a remainder of 63.
Put 7 as the next digit of the answer. 
Result so far: 607.0
Deduct 490 from 553 and we're left with 63.
Bring next digit (3) of the dividend behind the 63 and repeat the process: 633 / 70

Moving on to step 6:
70 goes into 633 9 times with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 6079.0
Deduct 630 from 633 and we're left with 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 70

Going ahead to step 7:
70 can be fit into 35 0 times, resulting in a remainder of 35.
The next digit of our result is 0. 
Result so far: 60790.0
If we subtract 0 from 35, we get 35.
Grab the next digit (1) from the dividend, add it to 35, then carry on: 351 / 70

Moving on to step 8:
If we divide 351 by 70, we get 5 and a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 607905.0
If we take 350 away from 351, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 9:
10 divided by 70 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 607905.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
70 goes into 100 1 times with a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 607905.01
Subtract 70 from 100 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
70 goes into 300 4 times with a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 607905.014
Subtract 280 from 300 to get 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:
When dividing 200 by 70, we get 2 with a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 607905.0142
If we take 140 away from 200, we end up 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.

Moving on to step 13:
70 goes into 600 8 times with a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 607905.01428
If we subtract 560 from 600, we 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.

On to step 14:
The number 70 fits into 400 5 times, leaving a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 607905.014285
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.

On to step 15:
The number 70 fits into 500 7 times, leaving a remainder of 10.
The next digit of our result is 7. 
Result so far: 607905.0142857
If we take 490 away from 500, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 16:
If we divide 100 by 70, we get 1 and a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 607905.01428571
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.

The final outcome is 607905.01428571, with a leftover of 3e-08.