We look at the division of 70638485 by 251 
We want to figure out the number of times 70638485 can be divided by 251.

Advancing to step 1:
7 divided by 251 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 251

On to step 2:
If we divide 70 by 251, we get 0 and a remainder of 70.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 70, we end up with 70.
Grab the next digit (6) from the dividend, add it to 70, then carry on: 706 / 251

Moving on to step 3:
251 can be fit into 706 2 times, resulting in a remainder of 204.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 502 from 706 and we're left with 204.
Include the next digit (3) from the dividend after 204, then repeat: 2043 / 251

Step 4:
251 can be fit into 2043 8 times, resulting in a remainder of 35.
The next digit of our result is 8. 
Result so far: 28.0
If we subtract 2008 from 2043, we get 35.
Bring next digit (8) of the dividend behind the 35 and repeat the process: 358 / 251

Step 5:
358 divided by 251 is 1 with a remainder of 107.
Record the quotient 1 as the next digit in the result. 
Result so far: 281.0
The remainder is 107 after subtracting 251 from 358.
Take the next digit (4) from the dividend and append it to 107, then repeat: 1074 / 251

Step 6:
The number 251 fits into 1074 4 times, leaving a remainder of 70.
Use 4 as the next digit of our solution. 
Result so far: 2814.0
If we subtract 1004 from 1074, we get 70.
Take the next digit (8) from the dividend and append it to 70, then repeat: 708 / 251

Step 7:
When dividing 708 by 251, we get 2 with a remainder of 206.
Write down 2 as next digit of the result. 
Result so far: 28142.0
If we take 502 away from 708, we end up with 206.
Take the next digit (5) from the dividend and append it to 206, then repeat: 2065 / 251

Let's proceed to step 8:
251 can be fit into 2065 8 times, resulting in a remainder of 57.
The next digit of our result is 8. 
Result so far: 281428.0
If we subtract 2008 from 2065, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 9:
When dividing 570 by 251, we get 2 with a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 281428.2
If we subtract 502 from 570, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 10:
251 goes into 680 2 times with a remainder of 178.
Write down 2 as next digit of the result. 
Result so far: 281428.22
The remainder is 178 after subtracting 502 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

The final result is 281428.22 with a remainder of 0.178.