70186371 ÷ 879 
The aim is to understand the frequency of 879 in 70186371.

Step 1:
If we divide 7 by 879, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 879

On to step 2:
If we divide 70 by 879, we get 0 and a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 70, we end up with 70.
Append the next digit (1) from the dividend to 70 and continue with: 701 / 879

On to step 3:
701 divided by 879 is 0 with a remainder of 701.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 701 after subtracting 0 from 701.
Bring next digit (8) of the dividend behind the 701 and repeat the process: 7018 / 879

Advancing to step 4:
879 goes into 7018 7 times with a remainder of 865.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 6153 from 7018 to get 865.
Grab the next digit (6) from the dividend, add it to 865, then carry on: 8656 / 879

Let's proceed to step 5:
When dividing 8656 by 879, we get 9 with a remainder of 745.
The next digit of our result is 9. 
Result so far: 79.0
If we take 7911 away from 8656, we end up with 745.
Grab the next digit (3) from the dividend, add it to 745, then carry on: 7453 / 879

Step 6:
879 can be fit into 7453 8 times, resulting in a remainder of 421.
Use 8 as the next digit of our solution. 
Result so far: 798.0
Subtract 7032 from 7453 to get 421.
Fetch the next digit (7) from the dividend, attach it to 421 and continue: 4217 / 879

Advancing to step 7:
879 can be fit into 4217 4 times, resulting in a remainder of 701.
Record the quotient 4 as the next digit in the result. 
Result so far: 7984.0
Subtract 3516 from 4217 to get 701.
Bring next digit (1) of the dividend behind the 701 and repeat the process: 7011 / 879

On to step 8:
879 goes into 7011 7 times with a remainder of 858.
Record the quotient 7 as the next digit in the result. 
Result so far: 79847.0
If we take 6153 away from 7011, we end up with 858.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8580, and continue the process.

Step 9:
8580 divided by 879 is 9 with a remainder of 669.
Write down 9 as next digit of the result. 
Result so far: 79847.9
If we subtract 7911 from 8580, we get 669.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6690, and continue the process.

Moving on to step 10:
The number 879 fits into 6690 7 times, leaving a remainder of 537.
Write down 7 as next digit of the result. 
Result so far: 79847.97
If we subtract 6153 from 6690, we get 537.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5370, and continue the process.

Step 11:
When dividing 5370 by 879, we get 6 with a remainder of 96.
The number 6 becomes the next digit in our result. 
Result so far: 79847.976
Subtract 5274 from 5370 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 12:
879 goes into 960 1 times with a remainder of 81.
Use 1 as the next digit of our solution. 
Result so far: 79847.9761
The remainder is 81 after subtracting 879 from 960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Advancing to step 13:
When dividing 810 by 879, we get 0 with a remainder of 810.
Use 0 as the next digit of our solution. 
Result so far: 79847.9761
The remainder is 810 after subtracting 0 from 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Moving on to step 14:
879 goes into 8100 9 times with a remainder of 189.
The number 9 becomes the next digit in our result. 
Result so far: 79847.976109
If we subtract 7911 from 8100, we get 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

Moving on to step 15:
879 goes into 1890 2 times with a remainder of 132.
Write down 2 as next digit of the result. 
Result so far: 79847.9761092
Deduct 1758 from 1890 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 16:
If we divide 1320 by 879, we get 1 and a remainder of 441.
Use 1 as the next digit of our solution. 
Result so far: 79847.97610921
Deduct 879 from 1320 and we're left with 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

The quotient of the division is 79847.97610921, and the remainder is 4.41e-07.