73019308 ÷ 851 
We want to divide 73019308 by 851.

On to step 1:
If we divide 7 by 851, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 851

On to step 2:
851 can be fit into 73 0 times, resulting in a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 73 to get 73.
Bring next digit (0) of the dividend behind the 73 and repeat the process: 730 / 851

Step 3:
851 can be fit into 730 0 times, resulting in a remainder of 730.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 730, we get 730.
Take the next digit (1) from the dividend and append it to 730, then repeat: 7301 / 851

Step 4:
851 goes into 7301 8 times with a remainder of 493.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we subtract 6808 from 7301, we get 493.
Grab the next digit (9) from the dividend, add it to 493, then carry on: 4939 / 851

On to step 5:
4939 divided by 851 is 5 with a remainder of 684.
Use 5 as the next digit of our solution. 
Result so far: 85.0
If we subtract 4255 from 4939, we get 684.
Append the next digit (3) from the dividend to 684 and continue with: 6843 / 851

Moving on to step 6:
The number 851 fits into 6843 8 times, leaving a remainder of 35.
Put 8 as the next digit of the answer. 
Result so far: 858.0
If we subtract 6808 from 6843, we get 35.
Bring next digit (0) of the dividend behind the 35 and repeat the process: 350 / 851

Moving on to step 7:
851 can be fit into 350 0 times, resulting in a remainder of 350.
Use 0 as the next digit of our solution. 
Result so far: 8580.0
If we subtract 0 from 350, we get 350.
Take the next digit (8) from the dividend and append it to 350, then repeat: 3508 / 851

Going ahead to step 8:
851 can be fit into 3508 4 times, resulting in a remainder of 104.
Put 4 as the next digit of the answer. 
Result so far: 85804.0
Deduct 3404 from 3508 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Step 9:
1040 divided by 851 is 1 with a remainder of 189.
The next digit of our result is 1. 
Result so far: 85804.1
Deduct 851 from 1040 and we're left with 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

On to step 10:
1890 divided by 851 is 2 with a remainder of 188.
The number 2 becomes the next digit in our result. 
Result so far: 85804.12
If we subtract 1702 from 1890, we get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Advancing to step 11:
The number 851 fits into 1880 2 times, leaving a remainder of 178.
Write down 2 as next digit of the result. 
Result so far: 85804.122
The remainder is 178 after subtracting 1702 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

The quotient of the division is 85804.122, and the remainder is 0.0178.