We're dividing 19131601 by 870 
We want to figure out the number of times 19131601 can be divided by 870.

Advancing to step 1:
If we divide 1 by 870, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 870

Moving on to step 2:
870 can be fit into 19 0 times, resulting in a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Fetch the next digit (1) from the dividend, attach it to 19 and continue: 191 / 870

Step 3:
191 divided by 870 is 0 with a remainder of 191.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 191 after subtracting 0 from 191.
Include the next digit (3) from the dividend after 191, then repeat: 1913 / 870

Step 4:
870 can be fit into 1913 2 times, resulting in a remainder of 173.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 1740 from 1913 to get 173.
Take the next digit (1) from the dividend and append it to 173, then repeat: 1731 / 870

Step 5:
1731 divided by 870 is 1 with a remainder of 861.
Write down 1 as next digit of the result. 
Result so far: 21.0
Deduct 870 from 1731 and we're left with 861.
Grab the next digit (6) from the dividend, add it to 861, then carry on: 8616 / 870

Going ahead to step 6:
If we divide 8616 by 870, we get 9 and a remainder of 786.
Put 9 as the next digit of the answer. 
Result so far: 219.0
If we take 7830 away from 8616, we end up with 786.
Fetch the next digit (0) from the dividend, attach it to 786 and continue: 7860 / 870

Let's proceed to step 7:
870 goes into 7860 9 times with a remainder of 30.
Write down 9 as next digit of the result. 
Result so far: 2199.0
If we subtract 7830 from 7860, we get 30.
Append the next digit (1) from the dividend to 30 and continue with: 301 / 870

Going ahead to step 8:
301 divided by 870 is 0 with a remainder of 301.
Use 0 as the next digit of our solution. 
Result so far: 21990.0
Deduct 0 from 301 and we're left with 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

Going ahead to step 9:
870 goes into 3010 3 times with a remainder of 400.
Write down 3 as next digit of the result. 
Result so far: 21990.3
Subtracting 2610 from 3010 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 10:
When dividing 4000 by 870, we get 4 with a remainder of 520.
Put 4 as the next digit of the answer. 
Result so far: 21990.34
Subtracting 3480 from 4000 leaves us with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Moving on to step 11:
The number 870 fits into 5200 5 times, leaving a remainder of 850.
The next digit of our result is 5. 
Result so far: 21990.345
Deduct 4350 from 5200 and we're left with 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8500, and continue the process.

On to step 12:
8500 divided by 870 is 9 with a remainder of 670.
Put 9 as the next digit of the answer. 
Result so far: 21990.3459
If we subtract 7830 from 8500, we get 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Going ahead to step 13:
When dividing 6700 by 870, we get 7 with a remainder of 610.
The next digit of our result is 7. 
Result so far: 21990.34597
If we subtract 6090 from 6700, we get 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Advancing to step 14:
870 goes into 6100 7 times with a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 21990.345977
Subtract 6090 from 6100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 21990.345977 with a remaining 1e-06.