71015758 divided by 400 
Our goal is to divide 71015758 by 400.

Going ahead to step 1:
400 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
The remainder is 7 after subtracting 0 from 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 400

Going ahead to step 2:
400 goes into 71 0 times with a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Bring next digit (0) of the dividend behind the 71 and repeat the process: 710 / 400

On to step 3:
400 can be fit into 710 1 times, resulting in a remainder of 310.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 400 from 710 leaves us with 310.
Bring next digit (1) of the dividend behind the 310 and repeat the process: 3101 / 400

Step 4:
The number 400 fits into 3101 7 times, leaving a remainder of 301.
Put 7 as the next digit of the answer. 
Result so far: 17.0
If we subtract 2800 from 3101, we get 301.
Fetch the next digit (5) from the dividend, attach it to 301 and continue: 3015 / 400

Going ahead to step 5:
400 goes into 3015 7 times with a remainder of 215.
Use 7 as the next digit of our solution. 
Result so far: 177.0
Deduct 2800 from 3015 and we're left with 215.
Fetch the next digit (7) from the dividend, attach it to 215 and continue: 2157 / 400

Moving on to step 6:
If we divide 2157 by 400, we get 5 and a remainder of 157.
Record the quotient 5 as the next digit in the result. 
Result so far: 1775.0
Subtract 2000 from 2157 to get 157.
Grab the next digit (5) from the dividend, add it to 157, then carry on: 1575 / 400

On to step 7:
If we divide 1575 by 400, we get 3 and a remainder of 375.
The number 3 becomes the next digit in our result. 
Result so far: 17753.0
Subtracting 1200 from 1575 leaves us with 375.
Append the next digit (8) from the dividend to 375 and continue with: 3758 / 400

On to step 8:
3758 divided by 400 is 9 with a remainder of 158.
The next digit of our result is 9. 
Result so far: 177539.0
If we subtract 3600 from 3758, we get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Step 9:
When dividing 1580 by 400, we get 3 with a remainder of 380.
Record the quotient 3 as the next digit in the result. 
Result so far: 177539.3
Deduct 1200 from 1580 and we're left with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

On to step 10:
400 can be fit into 3800 9 times, resulting in a remainder of 200.
Put 9 as the next digit of the answer. 
Result so far: 177539.39
Deduct 3600 from 3800 and we're left with 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 11:
400 goes into 2000 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 177539.395
The remainder is 0 after subtracting 2000 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 12:
When dividing 0 by 400, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 177539.395
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 13:
0 divided by 400 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 177539.395
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 177539.395, with a leftover of 0.0.